666560600610 has 16 divisors (see below), whose sum is σ = 1599745441536. Its totient is φ = 177749493488.

The previous prime is 666560600591. The next prime is 666560600689. The reversal of 666560600610 is 16006065666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11109343314 + ... + 11109343373.

It is an arithmetic number, because the mean of its divisors is an integer number (99984090096).

Almost surely, 2^666560600610 is an apocalyptic number.

666560600610 is an abundant number, since it is smaller than the sum of its proper divisors (933184840926).

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

666560600610 is a wasteful number, since it uses less digits than its factorization.

666560600610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22218686697.

The product of its (nonzero) digits is 233280, while the sum is 42.

The spelling of 666560600610 in words is "six hundred sixty-six billion, five hundred sixty million, six hundred thousand, six hundred ten".