318667275661 has 12 divisors (see below), whose sum is σ = 375160790592. Its totient is φ = 269852491608.

The previous prime is 318667275653. The next prime is 318667275679. The reversal of 318667275661 is 166572766813.

It is not a de Polignac number, because 318667275661 - 2³ = 318667275653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 318667275596 and 318667275605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318667275601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39173125 + ... + 39181258.

It is an arithmetic number, because the mean of its divisors is an integer number (31263399216).

Almost surely, 2^318667275661 is an apocalyptic number.

It is an amenable number.

318667275661 is a deficient number, since it is larger than the sum of its proper divisors (56493514931).

318667275661 is an equidigital number, since it uses as much as digits as its factorization.

318667275661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78354480 (or 78354473 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 58.

The spelling of 318667275661 in words is "three hundred eighteen billion, six hundred sixty-seven million, two hundred seventy-five thousand, six hundred sixty-one".