666560560106 has 32 divisors (see below), whose sum is σ = 1156257279360. Its totient is φ = 282284424000.

The previous prime is 666560560103. The next prime is 666560560111. The reversal of 666560560106 is 601065065666.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (666560560103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256661 + ... + 1182791.

It is an arithmetic number, because the mean of its divisors is an integer number (36133039980).

Almost surely, 2^666560560106 is an apocalyptic number.

666560560106 is a deficient number, since it is larger than the sum of its proper divisors (489696719254).

666560560106 is a wasteful number, since it uses less digits than its factorization.

666560560106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926750.

The product of its (nonzero) digits is 1166400, while the sum is 47.

The spelling of 666560560106 in words is "six hundred sixty-six billion, five hundred sixty million, five hundred sixty thousand, one hundred six".