12318316984516 has 81 divisors (see below), whose sum is σ = 22703232352941. Its totient is φ = 5848023019104.

The previous prime is 12318316984499. The next prime is 12318316984537. The reversal of 12318316984516 is 61548961381321.

The square root of 12318316984516 is 3509746.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 11022599200900 + 1295717783616 = 3320030^2 + 1138296^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 11168011221 + ... + 11168012323.

Almost surely, 2^{12318316984516} is an apocalyptic number.

12318316984516 is the 3509746-th square number.

It is an amenable number.

12318316984516 is a deficient number, since it is larger than the sum of its proper divisors (10384915368425).

12318316984516 is an frugal number, since it uses more digits than its factorization.

12318316984516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370 (or 1185 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 58.

The spelling of 12318316984516 in words is "twelve trillion, three hundred eighteen billion, three hundred sixteen million, nine hundred eighty-four thousand, five hundred sixteen".