13072211012544 has 112 divisors (see below), whose sum is σ = 35141113278720. Its totient is φ = 4287815239680.

The previous prime is 13072211012533. The next prime is 13072211012569. The reversal of 13072211012544 is 44521011227031.

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, 6212772 + ... + 8046300.

Almost surely, 2^{13072211012544} 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 13072211012544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17570556639360).

13072211012544 is an abundant number, since it is smaller than the sum of its proper divisors (22068902266176).

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

13072211012544 is a wasteful number, since it uses less digits than its factorization.

13072211012544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1834138 (or 1834128 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

Adding to 13072211012544 its reverse (44521011227031), we get a palindrome (57593222239575).

The spelling of 13072211012544 in words is "thirteen trillion, seventy-two billion, two hundred eleven million, twelve thousand, five hundred forty-four".