669317713967 has 12 divisors (see below), whose sum is σ = 778840412616. Its totient is φ = 573519386160.

The previous prime is 669317713951. The next prime is 669317714011. The reversal of 669317713967 is 769317713966.

It is not a de Polignac number, because 669317713967 - 2⁴ = 669317713951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669317716967) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2004284 + ... + 2314257.

It is an arithmetic number, because the mean of its divisors is an integer number (64903367718).

Almost surely, 2^669317713967 is an apocalyptic number.

669317713967 is a deficient number, since it is larger than the sum of its proper divisors (109522698649).

669317713967 is a wasteful number, since it uses less digits than its factorization.

669317713967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4321718 (or 4321711 counting only the distinct ones).

The product of its digits is 54010152, while the sum is 65.

Subtracting 669317713967 from its reverse (769317713966), we obtain a palindrome (99999999999).

The spelling of 669317713967 in words is "six hundred sixty-nine billion, three hundred seventeen million, seven hundred thirteen thousand, nine hundred sixty-seven".