56815258168 has 32 divisors (see below), whose sum is σ = 111736317600. Its totient is φ = 27031707648.

The previous prime is 56815258141. The next prime is 56815258223. The reversal of 56815258168 is 86185251865.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 764433 + ... + 835456.

It is an arithmetic number, because the mean of its divisors is an integer number (3491759925).

Almost surely, 2^56815258168 is an apocalyptic number.

It is an amenable number.

56815258168 is a deficient number, since it is larger than the sum of its proper divisors (54921059432).

56815258168 is a wasteful number, since it uses less digits than its factorization.

56815258168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600111 (or 1600107 counting only the distinct ones).

The product of its digits is 4608000, while the sum is 55.

The spelling of 56815258168 in words is "fifty-six billion, eight hundred fifteen million, two hundred fifty-eight thousand, one hundred sixty-eight".