318666866137 has 16 divisors (see below), whose sum is σ = 346454323200. Its totient is φ = 291991925520.

The previous prime is 318666866129. The next prime is 318666866153. The reversal of 318666866137 is 731668666813.

It is not a de Polignac number, because 318666866137 - 2³ = 318666866129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (318666860137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 901164 + ... + 1203922.

It is an arithmetic number, because the mean of its divisors is an integer number (21653395200).

Almost surely, 2^318666866137 is an apocalyptic number.

It is an amenable number.

318666866137 is a deficient number, since it is larger than the sum of its proper divisors (27787457063).

318666866137 is a wasteful number, since it uses less digits than its factorization.

318666866137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304596.

The product of its digits is 31352832, while the sum is 61.

The spelling of 318666866137 in words is "three hundred eighteen billion, six hundred sixty-six million, eight hundred sixty-six thousand, one hundred thirty-seven".