556243632520 has 64 divisors (see below), whose sum is σ = 1254299904000. Its totient is φ = 222008736768.

The previous prime is 556243632479. The next prime is 556243632557. The reversal of 556243632520 is 25236342655.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43830336 + ... + 43843024.

It is an arithmetic number, because the mean of its divisors is an integer number (19598436000).

Almost surely, 2^556243632520 is an apocalyptic number.

It is an amenable number.

556243632520 is an abundant number, since it is smaller than the sum of its proper divisors (698056271480).

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

556243632520 is a wasteful number, since it uses less digits than its factorization.

556243632520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15022 (or 15018 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 43.

The spelling of 556243632520 in words is "five hundred fifty-six billion, two hundred forty-three million, six hundred thirty-two thousand, five hundred twenty".