566251664 has 40 divisors (see below), whose sum is σ = 1200527328. Its totient is φ = 256596480.

The previous prime is 566251633. The next prime is 566251669. The reversal of 566251664 is 466152665.

It is not an unprimeable number, because it can be changed into a prime (566251669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54539 + ... + 64085.

Almost surely, 2^566251664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 566251664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (600263664).

566251664 is an abundant number, since it is smaller than the sum of its proper divisors (634275664).

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

566251664 is a wasteful number, since it uses less digits than its factorization.

566251664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9903 (or 9897 counting only the distinct ones).

The product of its digits is 259200, while the sum is 41.

The square root of 566251664 is about 23796.0430324035. The cubic root of 566251664 is about 827.3129652163.

The spelling of 566251664 in words is "five hundred sixty-six million, two hundred fifty-one thousand, six hundred sixty-four".