556656104550 has 96 divisors (see below), whose sum is σ = 1699085751552. Its totient is φ = 117448318080.

The previous prime is 556656104549. The next prime is 556656104611. The reversal of 556656104550 is 55401656655.

It is a self number, because there is not a number n which added to its sum of digits gives 556656104550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20376684 + ... + 20403983.

It is an arithmetic number, because the mean of its divisors is an integer number (17698809912).

Almost surely, 2^556656104550 is an apocalyptic number.

556656104550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

556656104550 is an abundant number, since it is smaller than the sum of its proper divisors (1142429647002).

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

556656104550 is a wasteful number, since it uses less digits than its factorization.

556656104550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40780702 (or 40780697 counting only the distinct ones).

The product of its (nonzero) digits is 2700000, while the sum is 48.

The spelling of 556656104550 in words is "five hundred fifty-six billion, six hundred fifty-six million, one hundred four thousand, five hundred fifty".