3651663264 has 96 divisors (see below), whose sum is σ = 10018318464. Its totient is φ = 1162444800.

The previous prime is 3651663263. The next prime is 3651663307. The reversal of 3651663264 is 4623661563.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (3651663263) 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, 2280064 + ... + 2281664.

It is an arithmetic number, because the mean of its divisors is an integer number (104357484).

Almost surely, 2^3651663264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3651663264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5009159232).

3651663264 is an abundant number, since it is smaller than the sum of its proper divisors (6366655200).

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

3651663264 is a wasteful number, since it uses less digits than its factorization.

3651663264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2670 (or 2662 counting only the distinct ones).

The product of its digits is 466560, while the sum is 42.

The square root of 3651663264 is about 60428.9935709672. The cubic root of 3651663264 is about 1539.9155606707.

The spelling of 3651663264 in words is "three billion, six hundred fifty-one million, six hundred sixty-three thousand, two hundred sixty-four".