316652172517321 has 4 divisors (see below), whose sum is σ = 316873762562500. Its totient is φ = 316430582472144.

The previous prime is 316652172517309. The next prime is 316652172517327. The reversal of 316652172517321 is 123715271256613.

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 162972390052096 + 153679782465225 = 12766064^2 + 12396765^2 .

It is a cyclic number.

It is not a de Polignac number, because 316652172517321 - 2¹⁵ = 316652172484553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316652172517327) 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, 110795020446 + ... + 110795023303.

It is an arithmetic number, because the mean of its divisors is an integer number (79218440640625).

Almost surely, 2^{316652172517321} is an apocalyptic number.

It is an amenable number.

316652172517321 is a deficient number, since it is larger than the sum of its proper divisors (221590045179).

316652172517321 is a wasteful number, since it uses less digits than its factorization.

316652172517321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221590045178.

The product of its digits is 3175200, while the sum is 52.

The spelling of 316652172517321 in words is "three hundred sixteen trillion, six hundred fifty-two billion, one hundred seventy-two million, five hundred seventeen thousand, three hundred twenty-one".