566940816 has 160 divisors (see below), whose sum is σ = 1766414720. Its totient is φ = 173062656.

The previous prime is 566940811. The next prime is 566940817. The reversal of 566940816 is 618049665.

566940816 is a `hidden beast` number, since 566 + 9 + 4 + 0 + 81 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (566940811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 881391 + ... + 882033.

It is an arithmetic number, because the mean of its divisors is an integer number (11040092).

Almost surely, 2^566940816 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 566940816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (883207360).

566940816 is an abundant number, since it is smaller than the sum of its proper divisors (1199473904).

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

566940816 is a wasteful number, since it uses less digits than its factorization.

566940816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830 (or 818 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 566940816 is about 23810.5190199626. The cubic root of 566940816 is about 827.6484539990.

The spelling of 566940816 in words is "five hundred sixty-six million, nine hundred forty thousand, eight hundred sixteen".