566909988606 has 144 divisors (see below), whose sum is σ = 1342912536576. Its totient is φ = 172753124544.

The previous prime is 566909988539. The next prime is 566909988611. The reversal of 566909988606 is 606889909665.

566909988606 is a `hidden beast` number, since 5 + 6 + 6 + 9 + 0 + 9 + 9 + 8 + 8 + 606 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 317951991 + ... + 317953773.

It is an arithmetic number, because the mean of its divisors is an integer number (9325781504).

Almost surely, 2^566909988606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 566909988606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (671456268288).

566909988606 is an abundant number, since it is smaller than the sum of its proper divisors (776002547970).

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

566909988606 is a wasteful number, since it uses less digits than its factorization.

566909988606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2767 (or 2751 counting only the distinct ones).

The product of its (nonzero) digits is 302330880, while the sum is 72.

The spelling of 566909988606 in words is "five hundred sixty-six billion, nine hundred nine million, nine hundred eighty-eight thousand, six hundred six".