566661165100 has 18 divisors (see below), whose sum is σ = 1229654728484. Its totient is φ = 226664466000.

The previous prime is 566661165097. The next prime is 566661165137. The reversal of 566661165100 is 1561166665.

It is a super-2 number, since 2×566661165100² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2833305726 + ... + 2833305925.

Almost surely, 2^566661165100 is an apocalyptic number.

566661165100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

566661165100 is an abundant number, since it is smaller than the sum of its proper divisors (662993563384).

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

566661165100 is a wasteful number, since it uses less digits than its factorization.

566661165100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5666611665 (or 5666611658 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 566661165100 in words is "five hundred sixty-six billion, six hundred sixty-one million, one hundred sixty-five thousand, one hundred".