318920606020 has 36 divisors (see below), whose sum is σ = 677899858860. Its totient is φ = 126031221184.

The previous prime is 318920605981. The next prime is 318920606071. The reversal of 318920606020 is 20606029813.

It can be written as a sum of positive squares in 2 ways, for example, as 161912883456 + 157007722564 = 402384^2 + 396242^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1019575 + ... + 1295134.

It is an arithmetic number, because the mean of its divisors is an integer number (18830551635).

Almost surely, 2^318920606020 is an apocalyptic number.

It is an amenable number.

318920606020 is an abundant number, since it is smaller than the sum of its proper divisors (358979252840).

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

318920606020 is a wasteful number, since it uses less digits than its factorization.

318920606020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2314884 (or 2314799 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 318920606020 in words is "three hundred eighteen billion, nine hundred twenty million, six hundred six thousand, twenty".