13320204444444 has 96 divisors (see below), whose sum is σ = 32370314296320. Its totient is φ = 4257979665408.

The previous prime is 13320204444431. The next prime is 13320204444497. The reversal of 13320204444444 is 44444440202331.

It is a happy number.

13320204444444 is a modest number, since divided by 4444444 gives 1332020 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30627657 + ... + 31059519.

It is an arithmetic number, because the mean of its divisors is an integer number (337190773920).

Almost surely, 2^{13320204444444} 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 13320204444444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16185157148160).

13320204444444 is an abundant number, since it is smaller than the sum of its proper divisors (19050109851876).

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

13320204444444 is a wasteful number, since it uses less digits than its factorization.

13320204444444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432499 (or 432497 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 39.

Adding to 13320204444444 its reverse (44444440202331), we get a palindrome (57764644646775).

The spelling of 13320204444444 in words is "thirteen trillion, three hundred twenty billion, two hundred four million, four hundred forty-four thousand, four hundred forty-four".