669317713908 has 12 divisors (see below), whose sum is σ = 1561741332480. Its totient is φ = 223105904632.

The previous prime is 669317713877. The next prime is 669317713913. The reversal of 669317713908 is 809317713966.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27888238068 + ... + 27888238091.

It is an arithmetic number, because the mean of its divisors is an integer number (130145111040).

Almost surely, 2^669317713908 is an apocalyptic number.

It is an amenable number.

669317713908 is an abundant number, since it is smaller than the sum of its proper divisors (892423618572).

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

669317713908 is a wasteful number, since it uses less digits than its factorization.

669317713908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55776476166 (or 55776476164 counting only the distinct ones).

The product of its (nonzero) digits is 10287648, while the sum is 60.

The spelling of 669317713908 in words is "six hundred sixty-nine billion, three hundred seventeen million, seven hundred thirteen thousand, nine hundred eight".