556172838311 has 2 divisors, whose sum is σ = 556172838312. Its totient is φ = 556172838310.

The previous prime is 556172838241. The next prime is 556172838329. The reversal of 556172838311 is 113838271655.

556172838311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 556172838311 - 2²² = 556168644007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 556172838311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556172838341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278086419155 + 278086419156.

It is an arithmetic number, because the mean of its divisors is an integer number (278086419156).

Almost surely, 2^556172838311 is an apocalyptic number.

556172838311 is a deficient number, since it is larger than the sum of its proper divisors (1).

556172838311 is an equidigital number, since it uses as much as digits as its factorization.

556172838311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1209600, while the sum is 50.

The spelling of 556172838311 in words is "five hundred fifty-six billion, one hundred seventy-two million, eight hundred thirty-eight thousand, three hundred eleven".