13216251345 has 64 divisors (see below), whose sum is σ = 23895648000. Its totient is φ = 6178672640.

The previous prime is 13216251319. The next prime is 13216251353. The reversal of 13216251345 is 54315261231.

It is not a de Polignac number, because 13216251345 - 2⁹ = 13216250833 is a prime.

It is a super-2 number, since 2×13216251345² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5018149 + ... + 5020781.

It is an arithmetic number, because the mean of its divisors is an integer number (373369500).

Almost surely, 2^13216251345 is an apocalyptic number.

13216251345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13216251345 is a deficient number, since it is larger than the sum of its proper divisors (10679396655).

13216251345 is a wasteful number, since it uses less digits than its factorization.

13216251345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3730.

The product of its digits is 21600, while the sum is 33.

The spelling of 13216251345 in words is "thirteen billion, two hundred sixteen million, two hundred fifty-one thousand, three hundred forty-five".