556117227831 has 8 divisors (see below), whose sum is σ = 808897785984. Its totient is φ = 337040744120.

The previous prime is 556117227791. The next prime is 556117227889. The reversal of 556117227831 is 138722711655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 556117227831 - 2⁷ = 556117227703 is a prime.

It is a super-2 number, since 2×556117227831² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556117220831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8426018571 + ... + 8426018636.

It is an arithmetic number, because the mean of its divisors is an integer number (101112223248).

Almost surely, 2^556117227831 is an apocalyptic number.

556117227831 is a deficient number, since it is larger than the sum of its proper divisors (252780558153).

556117227831 is a wasteful number, since it uses less digits than its factorization.

556117227831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16852037221.

The product of its digits is 705600, while the sum is 48.

The spelling of 556117227831 in words is "five hundred fifty-six billion, one hundred seventeen million, two hundred twenty-seven thousand, eight hundred thirty-one".