56699880104 has 64 divisors (see below), whose sum is σ = 131351164800. Its totient is φ = 22398799104.

The previous prime is 56699880053. The next prime is 56699880137. The reversal of 56699880104 is 40108899665.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a self number, because there is not a number n which added to its sum of digits gives 56699880104.

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, 680759 + ... + 759494.

It is an arithmetic number, because the mean of its divisors is an integer number (2052361950).

Almost surely, 2^56699880104 is an apocalyptic number.

It is an amenable number.

56699880104 is an abundant number, since it is smaller than the sum of its proper divisors (74651284696).

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

56699880104 is a wasteful number, since it uses less digits than its factorization.

56699880104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440322 (or 1440318 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 56.

The spelling of 56699880104 in words is "fifty-six billion, six hundred ninety-nine million, eight hundred eighty thousand, one hundred four".