64912064 has 56 divisors (see below), whose sum is σ = 150266400. Its totient is φ = 27810048.

The previous prime is 64912051. The next prime is 64912129. The reversal of 64912064 is 46021946.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 64912064.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20474 + ... + 23430.

Almost surely, 2^64912064 is an apocalyptic number.

64912064 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64912064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75133200).

64912064 is an abundant number, since it is smaller than the sum of its proper divisors (85354336).

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

64912064 is an equidigital number, since it uses as much as digits as its factorization.

64912064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2990 (or 2966 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 64912064 is about 8056.8023433618. The cubic root of 64912064 is about 401.8911778577.

The spelling of 64912064 in words is "sixty-four million, nine hundred twelve thousand, sixty-four".