556111172830 has 24 divisors (see below), whose sum is σ = 1015297367976. Its totient is φ = 219311428560.

The previous prime is 556111172807. The next prime is 556111172921. The reversal of 556111172830 is 38271111655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5465472 + ... + 5566291.

It is an arithmetic number, because the mean of its divisors is an integer number (42304056999).

Almost surely, 2^556111172830 is an apocalyptic number.

556111172830 is a deficient number, since it is larger than the sum of its proper divisors (459186195146).

556111172830 is a wasteful number, since it uses less digits than its factorization.

556111172830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11031912 (or 11031841 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 40.

The spelling of 556111172830 in words is "five hundred fifty-six billion, one hundred eleven million, one hundred seventy-two thousand, eight hundred thirty".