660115665636 has 48 divisors (see below), whose sum is σ = 1760376360960. Its totient is φ = 188597198880.

The previous prime is 660115665631. The next prime is 660115665637. The reversal of 660115665636 is 636566511066.

It is not an unprimeable number, because it can be changed into a prime (660115665631) 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, 2266701 + ... + 2541291.

It is an arithmetic number, because the mean of its divisors is an integer number (36674507520).

Almost surely, 2^660115665636 is an apocalyptic number.

It is an amenable number.

660115665636 is an abundant number, since it is smaller than the sum of its proper divisors (1100260695324).

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

660115665636 is a wasteful number, since it uses less digits than its factorization.

660115665636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303224 (or 303222 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 51.

The spelling of 660115665636 in words is "six hundred sixty billion, one hundred fifteen million, six hundred sixty-five thousand, six hundred thirty-six".