556326623655 has 64 divisors (see below), whose sum is σ = 1084897981440. Its totient is φ = 268243747200.

The previous prime is 556326623623. The next prime is 556326623747.

556326623655 is a `hidden beast` number, since 5 + 5 + 6 + 3 + 2 + 6 + 623 + 6 + 5 + 5 = 666.

556326623655 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 556326623655 - 2⁵ = 556326623623 is a prime.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 766107 + ... + 1303676.

It is an arithmetic number, because the mean of its divisors is an integer number (16951530960).

Almost surely, 2^556326623655 is an apocalyptic number.

556326623655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

556326623655 is a deficient number, since it is larger than the sum of its proper divisors (528571357785).

556326623655 is a wasteful number, since it uses less digits than its factorization.

556326623655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2069989 (or 2069983 counting only the distinct ones).

The product of its digits is 29160000, while the sum is 54.

The spelling of 556326623655 in words is "five hundred fifty-six billion, three hundred twenty-six million, six hundred twenty-three thousand, six hundred fifty-five".