56660027856 has 80 divisors (see below), whose sum is σ = 158002565760. Its totient is φ = 17442557440.

The previous prime is 56660027843. The next prime is 56660027857. The reversal of 56660027856 is 65872006665.

It is a junction number, because it is equal to n+sod(n) for n = 56660027799 and 56660027808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56660027857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 852855 + ... + 916886.

It is an arithmetic number, because the mean of its divisors is an integer number (1975032072).

Almost surely, 2^56660027856 is an apocalyptic number.

It is an amenable number.

56660027856 is an abundant number, since it is smaller than the sum of its proper divisors (101342537904).

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

56660027856 is a wasteful number, since it uses less digits than its factorization.

56660027856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1769804 (or 1769798 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 51.

The spelling of 56660027856 in words is "fifty-six billion, six hundred sixty million, twenty-seven thousand, eight hundred fifty-six".