566115660 has 144 divisors (see below), whose sum is σ = 1900184832. Its totient is φ = 135273600.

The previous prime is 566115643. The next prime is 566115661. The reversal of 566115660 is 66511665.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (566115661) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 138567 + ... + 142593.

It is an arithmetic number, because the mean of its divisors is an integer number (13195728).

Almost surely, 2^566115660 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 566115660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (950092416).

566115660 is an abundant number, since it is smaller than the sum of its proper divisors (1334069172).

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

566115660 is a wasteful number, since it uses less digits than its factorization.

566115660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4124 (or 4119 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 566115660 is about 23793.1851587802. The cubic root of 566115660 is about 827.2467244208.

It can be divided in two parts, 5661 and 15660, that added together give a triangular number (21321 = T₂₀₆).

The spelling of 566115660 in words is "five hundred sixty-six million, one hundred fifteen thousand, six hundred sixty".