556906231900 has 36 divisors (see below), whose sum is σ = 1209849158448. Its totient is φ = 222511315840.

The previous prime is 556906231883. The next prime is 556906231933. The reversal of 556906231900 is 9132609655.

It is a super-2 number, since 2×556906231900² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3050569 + ... + 3227968.

It is an arithmetic number, because the mean of its divisors is an integer number (33606921068).

Almost surely, 2^556906231900 is an apocalyptic number.

556906231900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

556906231900 is an abundant number, since it is smaller than the sum of its proper divisors (652942926548).

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

556906231900 is a wasteful number, since it uses less digits than its factorization.

556906231900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6279438 (or 6279431 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 46.

The spelling of 556906231900 in words is "five hundred fifty-six billion, nine hundred six million, two hundred thirty-one thousand, nine hundred".