13264165591 has 4 divisors (see below), whose sum is σ = 13266228184. Its totient is φ = 13262103000.

The previous prime is 13264165589. The next prime is 13264165597. The reversal of 13264165591 is 19556146231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19556146231 = 17 ⋅1150361543.

It is a cyclic number.

It is not a de Polignac number, because 13264165591 - 2¹ = 13264165589 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 (13264165597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1021620 + ... + 1034521.

It is an arithmetic number, because the mean of its divisors is an integer number (3316557046).

Almost surely, 2^13264165591 is an apocalyptic number.

13264165591 is a deficient number, since it is larger than the sum of its proper divisors (2062593).

13264165591 is an equidigital number, since it uses as much as digits as its factorization.

13264165591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2062592.

The product of its digits is 194400, while the sum is 43.

The spelling of 13264165591 in words is "thirteen billion, two hundred sixty-four million, one hundred sixty-five thousand, five hundred ninety-one".