565610166660 has 768 divisors, whose sum is σ = 2119358545920. Its totient is φ = 109175040000.

The previous prime is 565610166659. The next prime is 565610166697. The reversal of 565610166660 is 66661016565.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1161416937 + ... + 1161417423.

It is an arithmetic number, because the mean of its divisors is an integer number (2759581440).

Almost surely, 2^565610166660 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 565610166660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1059679272960).

565610166660 is an abundant number, since it is smaller than the sum of its proper divisors (1553748379260).

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

565610166660 is a wasteful number, since it uses less digits than its factorization.

565610166660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768 (or 766 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 48.

The spelling of 565610166660 in words is "five hundred sixty-five billion, six hundred ten million, one hundred sixty-six thousand, six hundred sixty".