556166727750 has 64 divisors (see below), whose sum is σ = 1388840955840. Its totient is φ = 148241811200.

The previous prime is 556166727749. The next prime is 556166727757. The reversal of 556166727750 is 57727661655.

It is a super-2 number, since 2×556166727750² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556166727757) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1442536 + ... + 1786964.

It is an arithmetic number, because the mean of its divisors is an integer number (21700639935).

Almost surely, 2^556166727750 is an apocalyptic number.

556166727750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

556166727750 is an abundant number, since it is smaller than the sum of its proper divisors (832674228090).

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

556166727750 is a wasteful number, since it uses less digits than its factorization.

556166727750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346602 (or 346592 counting only the distinct ones).

The product of its (nonzero) digits is 18522000, while the sum is 57.

The spelling of 556166727750 in words is "five hundred fifty-six billion, one hundred sixty-six million, seven hundred twenty-seven thousand, seven hundred fifty".