316356134433521 has 24 divisors (see below), whose sum is σ = 396846450087360. Its totient is φ = 245581042165056.

The previous prime is 316356134433491. The next prime is 316356134433541. The reversal of 316356134433521 is 125334431653613.

It is not a de Polignac number, because 316356134433521 - 2¹⁴ = 316356134417137 is a prime.

It is a super-2 number, since 2×316356134433521² (a number of 30 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 316356134433521.

It is not an unprimeable number, because it can be changed into a prime (316356134433541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 618548411 + ... + 619059648.

It is an arithmetic number, because the mean of its divisors is an integer number (16535268753640).

Almost surely, 2^{316356134433521} is an apocalyptic number.

It is an amenable number.

316356134433521 is a deficient number, since it is larger than the sum of its proper divisors (80490315653839).

316356134433521 is a wasteful number, since it uses less digits than its factorization.

316356134433521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237608185 (or 1237608132 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 50.

The spelling of 316356134433521 in words is "three hundred sixteen trillion, three hundred fifty-six billion, one hundred thirty-four million, four hundred thirty-three thousand, five hundred twenty-one".