556355553655 has 16 divisors (see below), whose sum is σ = 766652630400. Its totient is φ = 383326313760.

The previous prime is 556355553647. The next prime is 556355553661.

556355553655 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 556355553655 - 2³ = 556355553647 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 556355553655.

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, 266197785 + ... + 266199874.

It is an arithmetic number, because the mean of its divisors is an integer number (47915789400).

Almost surely, 2^556355553655 is an apocalyptic number.

556355553655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

556355553655 is a deficient number, since it is larger than the sum of its proper divisors (210297076745).

556355553655 is a wasteful number, since it uses less digits than its factorization.

556355553655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532397694.

The product of its digits is 126562500, while the sum is 58.

The spelling of 556355553655 in words is "five hundred fifty-six billion, three hundred fifty-five million, five hundred fifty-three thousand, six hundred fifty-five".