556579163831 has 2 divisors, whose sum is σ = 556579163832. Its totient is φ = 556579163830.

The previous prime is 556579163801. The next prime is 556579163879. The reversal of 556579163831 is 138361975655.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556579163831 is a prime.

It is a super-2 number, since 2×556579163831² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556579163801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278289581915 + 278289581916.

It is an arithmetic number, because the mean of its divisors is an integer number (278289581916).

Almost surely, 2^556579163831 is an apocalyptic number.

556579163831 is a deficient number, since it is larger than the sum of its proper divisors (1).

556579163831 is an equidigital number, since it uses as much as digits as its factorization.

556579163831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20412000, while the sum is 59.

The spelling of 556579163831 in words is "five hundred fifty-six billion, five hundred seventy-nine million, one hundred sixty-three thousand, eight hundred thirty-one".