556464464655 has 32 divisors (see below), whose sum is σ = 980900126208. Its totient is φ = 267129648000.

The previous prime is 556464464639. The next prime is 556464464663.

556464464655 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 556464464655 - 2⁴ = 556464464639 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16678939 + ... + 16712268.

It is an arithmetic number, because the mean of its divisors is an integer number (30653128944).

Almost surely, 2^556464464655 is an apocalyptic number.

556464464655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

556464464655 is a deficient number, since it is larger than the sum of its proper divisors (424435661553).

556464464655 is a wasteful number, since it uses less digits than its factorization.

556464464655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33391327.

The product of its digits is 207360000, while the sum is 60.

The spelling of 556464464655 in words is "five hundred fifty-six billion, four hundred sixty-four million, four hundred sixty-four thousand, six hundred fifty-five".