556161556000 has 96 divisors (see below), whose sum is σ = 1399818354480. Its totient is φ = 217038592000.

The previous prime is 556161555967. The next prime is 556161556019. The reversal of 556161556000 is 655161655.

It can be written as a sum of positive squares in 8 ways, for example, as 2738638224 + 553422917776 = 52332^2 + 743924^2 .

It is a super-2 number, since 2×556161556000² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 1531615 + ... + 1859614.

Almost surely, 2^556161556000 is an apocalyptic number.

556161556000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

556161556000 is an abundant number, since it is smaller than the sum of its proper divisors (843656798480).

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

556161556000 is a wasteful number, since it uses less digits than its factorization.

556161556000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3391295 (or 3391277 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 556161556000 in words is "five hundred fifty-six billion, one hundred sixty-one million, five hundred fifty-six thousand".