318666866068 has 12 divisors (see below), whose sum is σ = 558388453140. Its totient is φ = 159127308032.

The previous prime is 318666865997. The next prime is 318666866081. The reversal of 318666866068 is 860668666813.

It can be written as a sum of positive squares in 2 ways, for example, as 5169897604 + 313496968464 = 71902^2 + 559908^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51527773 + ... + 51533956.

It is an arithmetic number, because the mean of its divisors is an integer number (46532371095).

Almost surely, 2^318666866068 is an apocalyptic number.

It is an amenable number.

318666866068 is a deficient number, since it is larger than the sum of its proper divisors (239721587072).

318666866068 is a wasteful number, since it uses less digits than its factorization.

318666866068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103062506 (or 103062504 counting only the distinct ones).

The product of its (nonzero) digits is 71663616, while the sum is 64.

The spelling of 318666866068 in words is "three hundred eighteen billion, six hundred sixty-six million, eight hundred sixty-six thousand, sixty-eight".