556689168 has 60 divisors (see below), whose sum is σ = 1780524928. Its totient is φ = 159053760.

The previous prime is 556689139. The next prime is 556689169. The reversal of 556689168 is 861986655.

It is a happy number.

556689168 is a `hidden beast` number, since 556 + 6 + 89 + 1 + 6 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (556689169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 275128 + ... + 277143.

Almost surely, 2^556689168 is an apocalyptic number.

It is an amenable number.

556689168 is an abundant number, since it is smaller than the sum of its proper divisors (1223835760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

556689168 is a wasteful number, since it uses less digits than its factorization.

556689168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552292 (or 552283 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 54.

The square root of 556689168 is about 23594.2613361809. The cubic root of 556689168 is about 822.6294573009.

The spelling of 556689168 in words is "five hundred fifty-six million, six hundred eighty-nine thousand, one hundred sixty-eight".