556266662655 has 32 divisors (see below), whose sum is σ = 976550584320. Its totient is φ = 268146046080.

The previous prime is 556266662641. The next prime is 556266662659.

556266662655 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 556266662655 - 2⁴ = 556266662639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556266662659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9715135 + ... + 9772224.

It is an arithmetic number, because the mean of its divisors is an integer number (30517205760).

Almost surely, 2^556266662655 is an apocalyptic number.

556266662655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

556266662655 is a deficient number, since it is larger than the sum of its proper divisors (420283921665).

556266662655 is a wasteful number, since it uses less digits than its factorization.

556266662655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19487551.

The product of its digits is 116640000, while the sum is 60.

The spelling of 556266662655 in words is "five hundred fifty-six billion, two hundred sixty-six million, six hundred sixty-two thousand, six hundred fifty-five".