556667172789 has 16 divisors (see below), whose sum is σ = 913505104512. Its totient is φ = 293626640448.

The previous prime is 556667172707. The next prime is 556667172791. The reversal of 556667172789 is 987271766655.

It is not a de Polignac number, because 556667172789 - 2⁷ = 556667172661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556667176789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1019536674 + ... + 1019537219.

It is an arithmetic number, because the mean of its divisors is an integer number (57094069032).

Almost surely, 2^556667172789 is an apocalyptic number.

It is an amenable number.

556667172789 is a deficient number, since it is larger than the sum of its proper divisors (356837931723).

556667172789 is a wasteful number, since it uses less digits than its factorization.

556667172789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039073916.

The product of its digits is 266716800, while the sum is 69.

The spelling of 556667172789 in words is "five hundred fifty-six billion, six hundred sixty-seven million, one hundred seventy-two thousand, seven hundred eighty-nine".