56162171172 has 48 divisors (see below), whose sum is σ = 134124705792. Its totient is φ = 18280983840.

The previous prime is 56162171137. The next prime is 56162171209. The reversal of 56162171172 is 27117126165.

It is a self number, because there is not a number n which added to its sum of digits gives 56162171172.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2688793 + ... + 2709599.

It is an arithmetic number, because the mean of its divisors is an integer number (2794264704).

Almost surely, 2^56162171172 is an apocalyptic number.

It is an amenable number.

56162171172 is an abundant number, since it is smaller than the sum of its proper divisors (77962534620).

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

56162171172 is a wasteful number, since it uses less digits than its factorization.

56162171172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26088 (or 26086 counting only the distinct ones).

The product of its digits is 35280, while the sum is 39.

The spelling of 56162171172 in words is "fifty-six billion, one hundred sixty-two million, one hundred seventy-one thousand, one hundred seventy-two".