556313911999 has 4 divisors (see below), whose sum is σ = 563016489336. Its totient is φ = 549611334664.

The previous prime is 556313911969. The next prime is 556313912047. The reversal of 556313911999 is 999119313655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 999119313655 = 5 ⋅199823862731.

It is a cyclic number.

It is not a de Polignac number, because 556313911999 - 2¹⁹ = 556313387711 is a prime.

It is a super-2 number, since 2×556313911999² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556313911949) 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 in 3 ways as a sum of consecutive naturals, for example, 3351288544 + ... + 3351288709.

It is an arithmetic number, because the mean of its divisors is an integer number (140754122334).

Almost surely, 2^556313911999 is an apocalyptic number.

556313911999 is a deficient number, since it is larger than the sum of its proper divisors (6702577337).

556313911999 is an equidigital number, since it uses as much as digits as its factorization.

556313911999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6702577336.

The product of its digits is 8857350, while the sum is 61.

The spelling of 556313911999 in words is "five hundred fifty-six billion, three hundred thirteen million, nine hundred eleven thousand, nine hundred ninety-nine".