13216424165 has 16 divisors (see below), whose sum is σ = 18141575808. Its totient is φ = 9054593856.

The previous prime is 13216424131. The next prime is 13216424183. The reversal of 13216424165 is 56142461231.

It is a de Polignac number, because none of the positive numbers 2^k-13216424165 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128822 + ... + 207431.

It is an arithmetic number, because the mean of its divisors is an integer number (1133848488).

Almost surely, 2^13216424165 is an apocalyptic number.

It is an amenable number.

13216424165 is a deficient number, since it is larger than the sum of its proper divisors (4925151643).

13216424165 is a wasteful number, since it uses less digits than its factorization.

13216424165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337388.

The product of its digits is 34560, while the sum is 35.

Adding to 13216424165 its reverse (56142461231), we get a palindrome (69358885396).

The spelling of 13216424165 in words is "thirteen billion, two hundred sixteen million, four hundred twenty-four thousand, one hundred sixty-five".