13331251344 has 80 divisors (see below), whose sum is σ = 35063184384. Its totient is φ = 4363468800.

The previous prime is 13331251331. The next prime is 13331251361. The reversal of 13331251344 is 44315213331.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1873297 + ... + 1880399.

Almost surely, 2^13331251344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13331251344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17531592192).

13331251344 is an abundant number, since it is smaller than the sum of its proper divisors (21731933040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13331251344 is a wasteful number, since it uses less digits than its factorization.

13331251344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7816 (or 7810 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

Adding to 13331251344 its reverse (44315213331), we get a palindrome (57646464675).

The spelling of 13331251344 in words is "thirteen billion, three hundred thirty-one million, two hundred fifty-one thousand, three hundred forty-four".