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4668668664 = 2331153333667
BaseRepresentation
bin1000101100100011…
…00011101011111000
3110001100220221102020
410112101203223320
534030134344124
62051133434440
7223460012622
oct42621435370
913040827366
104668668664
111a86383960
12aa363ba20
13595310b4a
14324093c12
151c4d09379
hex116463af8

4668668664 has 64 divisors (see below), whose sum is σ = 12973011840. Its totient is φ = 1388050560.

The previous prime is 4668668663. The next prime is 4668668677.

It is a happy number.

4668668664 is nontrivially palindromic in base 10.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 4668668598 and 4668668607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4668668663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152842 + ... + 180825.

It is an arithmetic number, because the mean of its divisors is an integer number (202703310).

Almost surely, 24668668664 is an apocalyptic number.

4668668664 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4668668664 is an abundant number, since it is smaller than the sum of its proper divisors (8304343176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4668668664 is a wasteful number, since it uses less digits than its factorization.

4668668664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333740 (or 333736 counting only the distinct ones).

The product of its digits is 47775744, while the sum is 60.

The square root of 4668668664 is about 68327.6566552666. The cubic root of 4668668664 is about 1671.3382443740.

The spelling of 4668668664 in words is "four billion, six hundred sixty-eight million, six hundred sixty-eight thousand, six hundred sixty-four".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 53 66 88 106 132 159 212 264 318 424 583 636 1166 1272 1749 2332 3498 4664 6996 13992 333667 667334 1001001 1334668 2002002 2669336 3670337 4004004 7340674 8008008 11011011 14681348 17684351 22022022 29362696 35368702 44044044 53053053 70737404 88088088 106106106 141474808 194527861 212212212 389055722 424424424 583583583 778111444 1167167166 1556222888 2334334332 4668668664