64016563264 has 56 divisors (see below), whose sum is σ = 136785278880. Its totient is φ = 29614811136.

The previous prime is 64016563253. The next prime is 64016563283. The reversal of 64016563264 is 46236561046.

It is a self number, because there is not a number n which added to its sum of digits gives 64016563264.

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, 434442 + ... + 562825.

Almost surely, 2^64016563264 is an apocalyptic number.

64016563264 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

64016563264 is an abundant number, since it is smaller than the sum of its proper divisors (72768715616).

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

64016563264 is a wasteful number, since it uses less digits than its factorization.

64016563264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997355 (or 997345 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 64016563264 in words is "sixty-four billion, sixteen million, five hundred sixty-three thousand, two hundred sixty-four".