13268316465 has 24 divisors (see below), whose sum is σ = 23026492008. Its totient is φ = 7067796480.

The previous prime is 13268316449. The next prime is 13268316497. The reversal of 13268316465 is 56461386231.

13268316465 is a `hidden beast` number, since 1 + 326 + 8 + 316 + 4 + 6 + 5 = 666.

13268316465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 677456784 + 12590859681 = 26028^2 + 112209^2 .

It is not a de Polignac number, because 13268316465 - 2⁴ = 13268316449 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 13268316465.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142624 + ... + 216513.

It is an arithmetic number, because the mean of its divisors is an integer number (959437167).

Almost surely, 2^13268316465 is an apocalyptic number.

13268316465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13268316465 is a deficient number, since it is larger than the sum of its proper divisors (9758175543).

13268316465 is a wasteful number, since it uses less digits than its factorization.

13268316465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359969 (or 359966 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The spelling of 13268316465 in words is "thirteen billion, two hundred sixty-eight million, three hundred sixteen thousand, four hundred sixty-five".