56162640772 has 12 divisors (see below), whose sum is σ = 112325281600. Its totient is φ = 24069703176.

The previous prime is 56162640679. The next prime is 56162640799. The reversal of 56162640772 is 27704626165.

56162640772 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1002904272 + ... + 1002904327.

Almost surely, 2^56162640772 is an apocalyptic number.

It is an amenable number.

56162640772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

56162640772 is a wasteful number, since it uses less digits than its factorization.

56162640772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005808610 (or 2005808608 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 56162640772 in words is "fifty-six billion, one hundred sixty-two million, six hundred forty thousand, seven hundred seventy-two".