669317713952 has 24 divisors (see below), whose sum is σ = 1318111522812. Its totient is φ = 334559232000.

The previous prime is 669317713951. The next prime is 669317714011. The reversal of 669317713952 is 259317713966.

It can be written as a sum of positive squares in 2 ways, for example, as 657455018896 + 11862695056 = 810836^2 + 108916^2 .

It is a junction number, because it is equal to n+sod(n) for n = 669317713891 and 669317713900.

It is not an unprimeable number, because it can be changed into a prime (669317713951) 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, 3004049 + ... + 3219152.

Almost surely, 2^669317713952 is an apocalyptic number.

It is an amenable number.

669317713952 is a deficient number, since it is larger than the sum of its proper divisors (648793808860).

669317713952 is a wasteful number, since it uses less digits than its factorization.

669317713952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6226572 (or 6226564 counting only the distinct ones).

The product of its digits is 12859560, while the sum is 59.

The spelling of 669317713952 in words is "six hundred sixty-nine billion, three hundred seventeen million, seven hundred thirteen thousand, nine hundred fifty-two".