665935716116 has 24 divisors (see below), whose sum is σ = 1272397581504. Its totient is φ = 302444300480.

The previous prime is 665935716113. The next prime is 665935716143. The reversal of 665935716116 is 611617539566.

665935716116 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665935716113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6290720 + ... + 6395703.

It is an arithmetic number, because the mean of its divisors is an integer number (53016565896).

Almost surely, 2^665935716116 is an apocalyptic number.

It is an amenable number.

665935716116 is a deficient number, since it is larger than the sum of its proper divisors (606461865388).

665935716116 is a wasteful number, since it uses less digits than its factorization.

665935716116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12687631 (or 12687629 counting only the distinct ones).

The product of its digits is 6123600, while the sum is 56.

The spelling of 665935716116 in words is "six hundred sixty-five billion, nine hundred thirty-five million, seven hundred sixteen thousand, one hundred sixteen".