556617730560 has 80 divisors (see below), whose sum is σ = 1779437331936. Its totient is φ = 148431392768.

The previous prime is 556617730523. The next prime is 556617730573. The reversal of 556617730560 is 65037716655.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

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, 36230454 + ... + 36245813.

Almost surely, 2^556617730560 is an apocalyptic number.

It is an amenable number.

556617730560 is an abundant number, since it is smaller than the sum of its proper divisors (1222819601376).

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

556617730560 is an equidigital number, since it uses as much as digits as its factorization.

556617730560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72476293 (or 72476277 counting only the distinct ones).

The product of its (nonzero) digits is 3969000, while the sum is 51.

The spelling of 556617730560 in words is "five hundred fifty-six billion, six hundred seventeen million, seven hundred thirty thousand, five hundred sixty".