556976496638 has 8 divisors (see below), whose sum is σ = 836302726632. Its totient is φ = 278208921096.

The previous prime is 556976496623. The next prime is 556976496649. The reversal of 556976496638 is 836694679655.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139661120 + ... + 139665107.

It is an arithmetic number, because the mean of its divisors is an integer number (104537840829).

Almost surely, 2^556976496638 is an apocalyptic number.

556976496638 is a deficient number, since it is larger than the sum of its proper divisors (279326229994).

556976496638 is a wasteful number, since it uses less digits than its factorization.

556976496638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279327226.

The product of its digits is 1763596800, while the sum is 74.

The spelling of 556976496638 in words is "five hundred fifty-six billion, nine hundred seventy-six million, four hundred ninety-six thousand, six hundred thirty-eight".