566656660 has 48 divisors (see below), whose sum is σ = 1215513936. Its totient is φ = 221847552.

The previous prime is 566656619. The next prime is 566656661. The reversal of 566656660 is 66656665.

566656660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1263376 + 565393284 = 1124^2 + 23778^2 .

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 566656660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566656661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198604 + ... + 201436.

It is an arithmetic number, because the mean of its divisors is an integer number (25323207).

Almost surely, 2^566656660 is an apocalyptic number.

It is an amenable number.

566656660 is an abundant number, since it is smaller than the sum of its proper divisors (648857276).

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

566656660 is a wasteful number, since it uses less digits than its factorization.

566656660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3052 (or 3050 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 46.

The square root of 566656660 is about 23804.5512455077. The cubic root of 566656660 is about 827.5101558615.

It can be divided in two parts, 5666 and 56660, that added together give a palindrome (62326).

The spelling of 566656660 in words is "five hundred sixty-six million, six hundred fifty-six thousand, six hundred sixty".