556404157860 has 24 divisors (see below), whose sum is σ = 1557931642176. Its totient is φ = 148374442080.

The previous prime is 556404157849. The next prime is 556404157867. The reversal of 556404157860 is 68751404655.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (556404157867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4636701256 + ... + 4636701375.

It is an arithmetic number, because the mean of its divisors is an integer number (64913818424).

Almost surely, 2^556404157860 is an apocalyptic number.

It is an amenable number.

556404157860 is an abundant number, since it is smaller than the sum of its proper divisors (1001527484316).

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

556404157860 is a wasteful number, since it uses less digits than its factorization.

556404157860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9273402643 (or 9273402641 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 51.

The spelling of 556404157860 in words is "five hundred fifty-six billion, four hundred four million, one hundred fifty-seven thousand, eight hundred sixty".