666365316616 has 16 divisors (see below), whose sum is σ = 1250953128000. Its totient is φ = 332777815824.

The previous prime is 666365316613. The next prime is 666365316637. The reversal of 666365316616 is 616613563666.

666365316616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (666365316613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50598316 + ... + 50611483.

It is an arithmetic number, because the mean of its divisors is an integer number (78184570500).

Almost surely, 2^666365316616 is an apocalyptic number.

It is an amenable number.

666365316616 is a deficient number, since it is larger than the sum of its proper divisors (584587811384).

666365316616 is a wasteful number, since it uses less digits than its factorization.

666365316616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101210628 (or 101210624 counting only the distinct ones).

The product of its digits is 12597120, while the sum is 55.

The spelling of 666365316616 in words is "six hundred sixty-six billion, three hundred sixty-five million, three hundred sixteen thousand, six hundred sixteen".