566668986 has 64 divisors (see below), whose sum is σ = 1308158208. Its totient is φ = 162252288.

The previous prime is 566668969. The next prime is 566669003. The reversal of 566668986 is 689866665.

It is an interprime number because it is at equal distance from previous prime (566668969) and next prime (566669003).

It is a super-2 number, since 2×566668986² = 642227479388536392, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62110 + ... + 70646.

It is an arithmetic number, because the mean of its divisors is an integer number (20439972).

Almost surely, 2^566668986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 566668986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (654079104).

566668986 is an abundant number, since it is smaller than the sum of its proper divisors (741489222).

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

566668986 is a wasteful number, since it uses less digits than its factorization.

566668986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8615.

The product of its digits is 22394880, while the sum is 60.

The square root of 566668986 is about 23804.8101441704. The cubic root of 566668986 is about 827.5161558594.

The spelling of 566668986 in words is "five hundred sixty-six million, six hundred sixty-eight thousand, nine hundred eighty-six".