669372490208 has 24 divisors (see below), whose sum is σ = 1353444040872. Its totient is φ = 325640670336.

The previous prime is 669372490169. The next prime is 669372490253. The reversal of 669372490208 is 802094273966.

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, 282673010 + ... + 282675377.

It is an arithmetic number, because the mean of its divisors is an integer number (56393501703).

Almost surely, 2^669372490208 is an apocalyptic number.

It is an amenable number.

669372490208 is an abundant number, since it is smaller than the sum of its proper divisors (684071550664).

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

669372490208 is a wasteful number, since it uses less digits than its factorization.

669372490208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565348434 (or 565348426 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 56.

The spelling of 669372490208 in words is "six hundred sixty-nine billion, three hundred seventy-two million, four hundred ninety thousand, two hundred eight".