556366464663655 has 16 divisors (see below), whose sum is σ = 678966218935200. Its totient is φ = 437542431577600.

The previous prime is 556366464663623. The next prime is 556366464663749.

556366464663655 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 556366464663655 - 2⁵ = 556366464663623 is a prime.

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, 4460091 + ... + 33654499.

It is an arithmetic number, because the mean of its divisors is an integer number (42435388683450).

Almost surely, 2^{556366464663655} is an apocalyptic number.

556366464663655 is a deficient number, since it is larger than the sum of its proper divisors (122599754271545).

556366464663655 is a wasteful number, since it uses less digits than its factorization.

556366464663655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29259074.

The product of its digits is 25194240000, while the sum is 76.

The spelling of 556366464663655 in words is "five hundred fifty-six trillion, three hundred sixty-six billion, four hundred sixty-four million, six hundred sixty-three thousand, six hundred fifty-five".