660445132266 has 24 divisors (see below), whose sum is σ = 1477124598144. Its totient is φ = 213046816680.

The previous prime is 660445132253. The next prime is 660445132309. The reversal of 660445132266 is 662231544066.

It is a happy number.

660445132266 is a `hidden beast` number, since 6 + 604 + 4 + 5 + 1 + 32 + 2 + 6 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 591796156 + ... + 591797271.

It is an arithmetic number, because the mean of its divisors is an integer number (61546858256).

Almost surely, 2^660445132266 is an apocalyptic number.

660445132266 is an abundant number, since it is smaller than the sum of its proper divisors (816679465878).

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

660445132266 is a wasteful number, since it uses less digits than its factorization.

660445132266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183593466 (or 1183593463 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 660445132266 in words is "six hundred sixty billion, four hundred forty-five million, one hundred thirty-two thousand, two hundred sixty-six".