665362107687 has 8 divisors (see below), whose sum is σ = 939334740336. Its totient is φ = 417482106752.

The previous prime is 665362107511. The next prime is 665362107703. The reversal of 665362107687 is 786701263566.

665362107687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 665362107687 - 2¹⁵ = 665362074919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665362102687) 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, 6523157868 + ... + 6523157969.

It is an arithmetic number, because the mean of its divisors is an integer number (117416842542).

Almost surely, 2^665362107687 is an apocalyptic number.

665362107687 is a deficient number, since it is larger than the sum of its proper divisors (273972632649).

665362107687 is a wasteful number, since it uses less digits than its factorization.

665362107687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13046315857.

The product of its (nonzero) digits is 15240960, while the sum is 57.

The spelling of 665362107687 in words is "six hundred sixty-five billion, three hundred sixty-two million, one hundred seven thousand, six hundred eighty-seven".