556585585655 has 16 divisors (see below), whose sum is σ = 728644798368. Its totient is φ = 404776368000.

The previous prime is 556585585651. The next prime is 556585585657.

556585585655 is nontrivially palindromic in base 10.

556585585655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 556585585655 - 2² = 556585585651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556585585651) 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, 1743785 + ... + 2038125.

It is an arithmetic number, because the mean of its divisors is an integer number (45540299898).

Almost surely, 2^556585585655 is an apocalyptic number.

556585585655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

556585585655 is a deficient number, since it is larger than the sum of its proper divisors (172059212713).

556585585655 is a wasteful number, since it uses less digits than its factorization.

556585585655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328738.

The product of its digits is 900000000, while the sum is 68.

The spelling of 556585585655 in words is "five hundred fifty-six billion, five hundred eighty-five million, five hundred eighty-five thousand, six hundred fifty-five".