56904172164 has 108 divisors (see below), whose sum is σ = 173522744304. Its totient is φ = 16258321296.

The previous prime is 56904172159. The next prime is 56904172181. The reversal of 56904172164 is 46127140965.

56904172164 is a `hidden beast` number, since 569 + 0 + 4 + 1 + 7 + 21 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (108).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 549754 + ... + 645009.

Almost surely, 2^56904172164 is an apocalyptic number.

56904172164 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

56904172164 is an abundant number, since it is smaller than the sum of its proper divisors (116618572140).

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

56904172164 is a wasteful number, since it uses less digits than its factorization.

56904172164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194796 (or 1194775 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 56904172164 in words is "fifty-six billion, nine hundred four million, one hundred seventy-two thousand, one hundred sixty-four".