56654640011640 has 64 divisors (see below), whose sum is σ = 185415185496960. Its totient is φ = 13734458184320.

The previous prime is 56654640011603. The next prime is 56654640011737. The reversal of 56654640011640 is 4611004645665.

It is a self number, because there is not a number n which added to its sum of digits gives 56654640011640.

It is a congruent number.

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, 21460089594 + ... + 21460092233.

It is an arithmetic number, because the mean of its divisors is an integer number (2897112273390).

Almost surely, 2^{56654640011640} is an apocalyptic number.

It is an amenable number.

56654640011640 is an abundant number, since it is smaller than the sum of its proper divisors (128760545485320).

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

56654640011640 is a wasteful number, since it uses less digits than its factorization.

56654640011640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42920181852 (or 42920181848 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 56654640011640 in words is "fifty-six trillion, six hundred fifty-four billion, six hundred forty million, eleven thousand, six hundred forty".