13108992065 has 8 divisors (see below), whose sum is σ = 16940851368. Its totient is φ = 9680486400.

The previous prime is 13108992059. The next prime is 13108992089. The reversal of 13108992065 is 56029980131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 428655616 + 12680336449 = 20704^2 + 112607^2 .

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

It is not a de Polignac number, because 13108992065 - 2²⁰ = 13107943489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100838336 + ... + 100838465.

It is an arithmetic number, because the mean of its divisors is an integer number (2117606421).

Almost surely, 2^13108992065 is an apocalyptic number.

It is an amenable number.

13108992065 is a deficient number, since it is larger than the sum of its proper divisors (3831859303).

13108992065 is a wasteful number, since it uses less digits than its factorization.

13108992065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201676819.

The product of its (nonzero) digits is 116640, while the sum is 44.

The spelling of 13108992065 in words is "thirteen billion, one hundred eight million, nine hundred ninety-two thousand, sixty-five".