56040665164 has 24 divisors (see below), whose sum is σ = 109878260688. Its totient is φ = 24784568640.

The previous prime is 56040665159. The next prime is 56040665209. The reversal of 56040665164 is 46156604065.

It is a self number, because there is not a number n which added to its sum of digits gives 56040665164.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17209879 + ... + 17213134.

It is an arithmetic number, because the mean of its divisors is an integer number (4578260862).

Almost surely, 2^56040665164 is an apocalyptic number.

It is an amenable number.

56040665164 is a deficient number, since it is larger than the sum of its proper divisors (53837595524).

56040665164 is a wasteful number, since it uses less digits than its factorization.

56040665164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34423065 (or 34423063 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 56040665164 in words is "fifty-six billion, forty million, six hundred sixty-five thousand, one hundred sixty-four".