556172838894 has 32 divisors (see below), whose sum is σ = 1162464712704. Its totient is φ = 177062165280.

The previous prime is 556172838829. The next prime is 556172838929. The reversal of 556172838894 is 498838271655.

It is a super-2 number, since 2×556172838894² (a number of 24 digits) contains 22 as substring.

It is a congruent 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, 2957374 + ... + 3139809.

It is an arithmetic number, because the mean of its divisors is an integer number (36327022272).

Almost surely, 2^556172838894 is an apocalyptic number.

556172838894 is an abundant number, since it is smaller than the sum of its proper divisors (606291873810).

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

556172838894 is a wasteful number, since it uses less digits than its factorization.

556172838894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6097872.

The product of its digits is 116121600, while the sum is 66.

The spelling of 556172838894 in words is "five hundred fifty-six billion, one hundred seventy-two million, eight hundred thirty-eight thousand, eight hundred ninety-four".