318675665320 has 16 divisors (see below), whose sum is σ = 717020247060. Its totient is φ = 127470266112.

The previous prime is 318675665309. The next prime is 318675665327. The reversal of 318675665320 is 23566576813.

It can be written as a sum of positive squares in 2 ways, for example, as 290648217924 + 28027447396 = 539118^2 + 167414^2 .

It is not an unprimeable number, because it can be changed into a prime (318675665327) 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, 3983445777 + ... + 3983445856.

Almost surely, 2^318675665320 is an apocalyptic number.

It is an amenable number.

318675665320 is an abundant number, since it is smaller than the sum of its proper divisors (398344581740).

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

318675665320 is a wasteful number, since it uses less digits than its factorization.

318675665320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7966891644 (or 7966891640 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 52.

The spelling of 318675665320 in words is "three hundred eighteen billion, six hundred seventy-five million, six hundred sixty-five thousand, three hundred twenty".