316616800865 has 4 divisors (see below), whose sum is σ = 379940161044. Its totient is φ = 253293440688.

The previous prime is 316616800837. The next prime is 316616800873. The reversal of 316616800865 is 568008616613.

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 178215688336 + 138401112529 = 422156^2 + 372023^2 .

It is a cyclic number.

It is not a de Polignac number, because 316616800865 - 2¹⁰ = 316616799841 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31661680082 + ... + 31661680091.

It is an arithmetic number, because the mean of its divisors is an integer number (94985040261).

Almost surely, 2^316616800865 is an apocalyptic number.

It is an amenable number.

316616800865 is a deficient number, since it is larger than the sum of its proper divisors (63323360179).

316616800865 is an equidigital number, since it uses as much as digits as its factorization.

316616800865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63323360178.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 316616800865 in words is "three hundred sixteen billion, six hundred sixteen million, eight hundred thousand, eight hundred sixty-five".