316666613 has 4 divisors (see below), whose sum is σ = 319802028. Its totient is φ = 313531200.

The previous prime is 316666601. The next prime is 316666697.

316666613 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 142611364 + 174055249 = 11942^2 + 13193^2 .

It is a cyclic number.

It is not a de Polignac number, because 316666613 - 2⁶ = 316666549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316666013) 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, 1567556 + ... + 1567757.

It is an arithmetic number, because the mean of its divisors is an integer number (79950507).

Almost surely, 2^316666613 is an apocalyptic number.

It is an amenable number.

316666613 is a deficient number, since it is larger than the sum of its proper divisors (3135415).

316666613 is a wasteful number, since it uses less digits than its factorization.

316666613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3135414.

The product of its digits is 69984, while the sum is 38.

The square root of 316666613 is about 17795.1289121490. The cubic root of 316666613 is about 681.6070791052.

The spelling of 316666613 in words is "three hundred sixteen million, six hundred sixty-six thousand, six hundred thirteen".