556328823655 has 16 divisors (see below), whose sum is σ = 728359275168. Its totient is φ = 404561520000.

The previous prime is 556328823647. The next prime is 556328823671.

It is a happy number.

556328823655 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 556328823655 - 2³ = 556328823647 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 556328823655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33745 + ... + 1055365.

It is an arithmetic number, because the mean of its divisors is an integer number (45522454698).

Almost surely, 2^556328823655 is an apocalyptic number.

556328823655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

556328823655 is a deficient number, since it is larger than the sum of its proper divisors (172030451513).

556328823655 is a wasteful number, since it uses less digits than its factorization.

556328823655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031538.

The product of its digits is 51840000, while the sum is 58.

The spelling of 556328823655 in words is "five hundred fifty-six billion, three hundred twenty-eight million, eight hundred twenty-three thousand, six hundred fifty-five".