556698896655 has 16 divisors (see below), whose sum is σ = 971692619904. Its totient is φ = 269914616480.

The previous prime is 556698896647. The next prime is 556698896693.

556698896655 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 556698896655 - 2³ = 556698896647 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1686966189 + ... + 1686966518.

It is an arithmetic number, because the mean of its divisors is an integer number (60730788744).

Almost surely, 2^556698896655 is an apocalyptic number.

556698896655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

556698896655 is a deficient number, since it is larger than the sum of its proper divisors (414993723249).

556698896655 is a wasteful number, since it uses less digits than its factorization.

556698896655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3373932726.

The product of its digits is 4199040000, while the sum is 78.

The spelling of 556698896655 in words is "five hundred fifty-six billion, six hundred ninety-eight million, eight hundred ninety-six thousand, six hundred fifty-five".