556166727848 has 8 divisors (see below), whose sum is σ = 1042812614730. Its totient is φ = 278083363920.

The previous prime is 556166727839. The next prime is 556166727881. The reversal of 556166727848 is 848727661655.

It can be written as a sum of positive squares in only one way, i.e., 486503460004 + 69663267844 = 697498^2 + 263938^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×556166727848² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34760420483 + ... + 34760420498.

Almost surely, 2^556166727848 is an apocalyptic number.

It is an amenable number.

556166727848 is a deficient number, since it is larger than the sum of its proper divisors (486645886882).

556166727848 is a wasteful number, since it uses less digits than its factorization.

556166727848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69520840987 (or 69520840983 counting only the distinct ones).

The product of its digits is 135475200, while the sum is 65.

The spelling of 556166727848 in words is "five hundred fifty-six billion, one hundred sixty-six million, seven hundred twenty-seven thousand, eight hundred forty-eight".