566166556 has 12 divisors (see below), whose sum is σ = 991730992. Its totient is φ = 282814848.

The previous prime is 566166539. The next prime is 566166571. The reversal of 566166556 is 655661665.

It is a super-2 number, since 2×566166556² = 641089138265802272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62325 + ... + 70828.

Almost surely, 2^566166556 is an apocalyptic number.

It is an amenable number.

566166556 is a deficient number, since it is larger than the sum of its proper divisors (425564436).

566166556 is a wasteful number, since it uses less digits than its factorization.

566166556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134220 (or 134218 counting only the distinct ones).

The product of its digits is 972000, while the sum is 46.

The square root of 566166556 is about 23794.2546846923. The cubic root of 566166556 is about 827.2715145774.

The spelling of 566166556 in words is "five hundred sixty-six million, one hundred sixty-six thousand, five hundred fifty-six".