13265964199 has 4 divisors (see below), whose sum is σ = 13693898560. Its totient is φ = 12838029840.

The previous prime is 13265964193. The next prime is 13265964211. The reversal of 13265964199 is 99146956231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13265964199 - 2³ = 13265964191 is a prime.

It is a super-2 number, since 2×13265964199² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13265964191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213967134 + ... + 213967195.

It is an arithmetic number, because the mean of its divisors is an integer number (3423474640).

Almost surely, 2^13265964199 is an apocalyptic number.

13265964199 is a deficient number, since it is larger than the sum of its proper divisors (427934361).

13265964199 is an equidigital number, since it uses as much as digits as its factorization.

13265964199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427934360.

The product of its digits is 3149280, while the sum is 55.

The spelling of 13265964199 in words is "thirteen billion, two hundred sixty-five million, nine hundred sixty-four thousand, one hundred ninety-nine".