556868278228 has 6 divisors (see below), whose sum is σ = 974519486906. Its totient is φ = 278434139112.

The previous prime is 556868278199. The next prime is 556868278301. The reversal of 556868278228 is 822872868655.

It can be written as a sum of positive squares in only one way, i.e., 381741093904 + 175127184324 = 617852^2 + 418482^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69608534775 + ... + 69608534782.

Almost surely, 2^556868278228 is an apocalyptic number.

It is an amenable number.

556868278228 is a deficient number, since it is larger than the sum of its proper divisors (417651208678).

556868278228 is a wasteful number, since it uses less digits than its factorization.

556868278228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139217069561 (or 139217069559 counting only the distinct ones).

The product of its digits is 206438400, while the sum is 67.

The spelling of 556868278228 in words is "five hundred fifty-six billion, eight hundred sixty-eight million, two hundred seventy-eight thousand, two hundred twenty-eight".