13344668345 has 4 divisors (see below), whose sum is σ = 16013602020. Its totient is φ = 10675734672.

The previous prime is 13344668327. The next prime is 13344668377. The reversal of 13344668345 is 54386644331.

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 8591806864 + 4752861481 = 92692^2 + 68941^2 .

It is a cyclic number.

It is not a de Polignac number, because 13344668345 - 2⁸ = 13344668089 is a prime.

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 13344668345.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1334466830 + ... + 1334466839.

It is an arithmetic number, because the mean of its divisors is an integer number (4003400505).

Almost surely, 2^13344668345 is an apocalyptic number.

It is an amenable number.

13344668345 is a deficient number, since it is larger than the sum of its proper divisors (2668933675).

13344668345 is an equidigital number, since it uses as much as digits as its factorization.

13344668345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2668933674.

The product of its digits is 2488320, while the sum is 47.

The spelling of 13344668345 in words is "thirteen billion, three hundred forty-four million, six hundred sixty-eight thousand, three hundred forty-five".