556172833945 has 16 divisors (see below), whose sum is σ = 676947744000. Its totient is φ = 438596241408.

The previous prime is 556172833921. The next prime is 556172833963. The reversal of 556172833945 is 549338271655.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556172833945 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 556172833945.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 892840 + ... + 1381849.

It is an arithmetic number, because the mean of its divisors is an integer number (42309234000).

Almost surely, 2^556172833945 is an apocalyptic number.

It is an amenable number.

556172833945 is a deficient number, since it is larger than the sum of its proper divisors (120774910055).

556172833945 is a wasteful number, since it uses less digits than its factorization.

556172833945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2275392.

The product of its digits is 27216000, while the sum is 58.

The spelling of 556172833945 in words is "five hundred fifty-six billion, one hundred seventy-two million, eight hundred thirty-three thousand, nine hundred forty-five".