556881188655 has 64 divisors (see below), whose sum is σ = 1023831244800. Its totient is φ = 255626824320.

The previous prime is 556881188621. The next prime is 556881188657.

556881188655 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 556881188655 - 2⁸ = 556881188399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556881188657) 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 63 ways as a sum of consecutive naturals, for example, 4855866 + ... + 4969224.

It is an arithmetic number, because the mean of its divisors is an integer number (15997363200).

Almost surely, 2^556881188655 is an apocalyptic number.

556881188655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

556881188655 is a deficient number, since it is larger than the sum of its proper divisors (466950056145).

556881188655 is a wasteful number, since it uses less digits than its factorization.

556881188655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114964.

The product of its digits is 92160000, while the sum is 66.

The spelling of 556881188655 in words is "five hundred fifty-six billion, eight hundred eighty-one million, one hundred eighty-eight thousand, six hundred fifty-five".