79944616164 has 24 divisors (see below), whose sum is σ = 213185643328. Its totient is φ = 22841318880.

The previous prime is 79944616123. The next prime is 79944616181. The reversal of 79944616164 is 46161644997.

It is a super-2 number, since 2×79944616164² (a number of 23 digits) contains 22 as substring.

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, 475860727 + ... + 475860894.

Almost surely, 2^79944616164 is an apocalyptic number.

It is an amenable number.

79944616164 is an abundant number, since it is smaller than the sum of its proper divisors (133241027164).

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

79944616164 is a wasteful number, since it uses less digits than its factorization.

79944616164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951721635 (or 951721633 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 57.

The spelling of 79944616164 in words is "seventy-nine billion, nine hundred forty-four million, six hundred sixteen thousand, one hundred sixty-four".