566555116566 has 16 divisors (see below), whose sum is σ = 1147453401600. Its totient is φ = 186461177448.

The previous prime is 566555116513. The next prime is 566555116577. The reversal of 566555116566 is 665611555665.

It is a super-2 number, since 2×566555116566² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 597631506 + ... + 597632453.

It is an arithmetic number, because the mean of its divisors is an integer number (71715837600).

Almost surely, 2^566555116566 is an apocalyptic number.

566555116566 is an abundant number, since it is smaller than the sum of its proper divisors (580898285034).

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

566555116566 is a wasteful number, since it uses less digits than its factorization.

566555116566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195264043.

The product of its digits is 24300000, while the sum is 57.

The spelling of 566555116566 in words is "five hundred sixty-six billion, five hundred fifty-five million, one hundred sixteen thousand, five hundred sixty-six".