556563365655 has 64 divisors (see below), whose sum is σ = 1028325957120. Its totient is φ = 254484518400.

The previous prime is 556563365641. The next prime is 556563365663.

556563365655 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 556563365655 - 2⁶ = 556563365591 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1146736 + ... + 1558245.

It is an arithmetic number, because the mean of its divisors is an integer number (16067593080).

Almost surely, 2^556563365655 is an apocalyptic number.

556563365655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

556563365655 is a deficient number, since it is larger than the sum of its proper divisors (471762591465).

556563365655 is a wasteful number, since it uses less digits than its factorization.

556563365655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2705072.

The product of its digits is 182250000, while the sum is 60.

The spelling of 556563365655 in words is "five hundred fifty-six billion, five hundred sixty-three million, three hundred sixty-five thousand, six hundred fifty-five".