56556106660 has 24 divisors (see below), whose sum is σ = 118952559936. Its totient is φ = 22587254880.

The previous prime is 56556106639. The next prime is 56556106699. The reversal of 56556106660 is 6660165565.

It is a self number, because there is not a number n which added to its sum of digits gives 56556106660.

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, 2186056 + ... + 2211775.

It is an arithmetic number, because the mean of its divisors is an integer number (4956356664).

Almost surely, 2^56556106660 is an apocalyptic number.

It is an amenable number.

56556106660 is an abundant number, since it is smaller than the sum of its proper divisors (62396453276).

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

56556106660 is a wasteful number, since it uses less digits than its factorization.

56556106660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4398483 (or 4398481 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 46.

It can be divided in two parts, 56556 and 106660, that added together give a square (163216 = 404²).

The spelling of 56556106660 in words is "fifty-six billion, five hundred fifty-six million, one hundred six thousand, six hundred sixty".