56220409944 has 48 divisors (see below), whose sum is σ = 153686655720. Its totient is φ = 18564992640.

The previous prime is 56220409939. The next prime is 56220409957. The reversal of 56220409944 is 44990402265.

56220409944 is a `hidden beast` number, since 562 + 2 + 0 + 40 + 9 + 9 + 44 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 56220409944.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3641077 + ... + 3656484.

Almost surely, 2^56220409944 is an apocalyptic number.

It is an amenable number.

56220409944 is an abundant number, since it is smaller than the sum of its proper divisors (97466245776).

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

56220409944 is a wasteful number, since it uses less digits than its factorization.

56220409944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7297680 (or 7297673 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 56220409944 in words is "fifty-six billion, two hundred twenty million, four hundred nine thousand, nine hundred forty-four".