556163361655 has 16 divisors (see below), whose sum is σ = 732090891168. Its totient is φ = 402247728000.

The previous prime is 556163361643. The next prime is 556163361673.

556163361655 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 556163361655 - 2⁵ = 556163361623 is a prime.

It is a Duffinian number.

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, 27923916 + ... + 27943825.

It is an arithmetic number, because the mean of its divisors is an integer number (45755680698).

Almost surely, 2^556163361655 is an apocalyptic number.

556163361655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

556163361655 is a deficient number, since it is larger than the sum of its proper divisors (175927529513).

556163361655 is a wasteful number, since it uses less digits than its factorization.

556163361655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55867938.

The product of its digits is 7290000, while the sum is 52.

The spelling of 556163361655 in words is "five hundred fifty-six billion, one hundred sixty-three million, three hundred sixty-one thousand, six hundred fifty-five".