56645308388 has 36 divisors (see below), whose sum is σ = 106550953740. Its totient is φ = 26258614272.

The previous prime is 56645308283. The next prime is 56645308411. The reversal of 56645308388 is 88380354665.

56645308388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 29787998464 + 26857309924 = 172592^2 + 163882^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 212468 + ... + 398036.

It is an arithmetic number, because the mean of its divisors is an integer number (2959748715).

Almost surely, 2^56645308388 is an apocalyptic number.

It is an amenable number.

56645308388 is a deficient number, since it is larger than the sum of its proper divisors (49905645352).

56645308388 is a wasteful number, since it uses less digits than its factorization.

56645308388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185724 (or 185655 counting only the distinct ones).

The product of its (nonzero) digits is 16588800, while the sum is 56.

The spelling of 56645308388 in words is "fifty-six billion, six hundred forty-five million, three hundred eight thousand, three hundred eighty-eight".