56345121956 has 12 divisors (see below), whose sum is σ = 98637173040. Its totient is φ = 28163072520.

The previous prime is 56345121913. The next prime is 56345121991. The reversal of 56345121956 is 65912154365.

56345121956 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 56345121956.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2358746 + ... + 2382513.

It is an arithmetic number, because the mean of its divisors is an integer number (8219764420).

Almost surely, 2^56345121956 is an apocalyptic number.

It is an amenable number.

56345121956 is a deficient number, since it is larger than the sum of its proper divisors (42292051084).

56345121956 is a wasteful number, since it uses less digits than its factorization.

56345121956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4744234 (or 4744232 counting only the distinct ones).

The product of its digits is 972000, while the sum is 47.

The spelling of 56345121956 in words is "fifty-six billion, three hundred forty-five million, one hundred twenty-one thousand, nine hundred fifty-six".