12316818445 has 8 divisors (see below), whose sum is σ = 15179646744. Its totient is φ = 9587145024.

The previous prime is 12316818443. The next prime is 12316818473. The reversal of 12316818445 is 54481861321.

It can be written as a sum of positive squares in 4 ways, for example, as 4291167049 + 8025651396 = 65507^2 + 89586^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12316818445 - 2¹ = 12316818443 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 (12316818443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33288514 + ... + 33288883.

It is an arithmetic number, because the mean of its divisors is an integer number (1897455843).

Almost surely, 2^12316818445 is an apocalyptic number.

It is an amenable number.

12316818445 is a deficient number, since it is larger than the sum of its proper divisors (2862828299).

12316818445 is an equidigital number, since it uses as much as digits as its factorization.

12316818445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66577439.

The product of its digits is 184320, while the sum is 43.

The spelling of 12316818445 in words is "twelve billion, three hundred sixteen million, eight hundred eighteen thousand, four hundred forty-five".