13356122444 has 48 divisors (see below), whose sum is σ = 27382924800. Its totient is φ = 5580531840.

The previous prime is 13356122443. The next prime is 13356122459. The reversal of 13356122444 is 44422165331.

It is not an unprimeable number, because it can be changed into a prime (13356122443) by changing a digit.

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, 2117207 + ... + 2123505.

It is an arithmetic number, because the mean of its divisors is an integer number (570477600).

Almost surely, 2^13356122444 is an apocalyptic number.

13356122444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13356122444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13691462400).

13356122444 is an abundant number, since it is smaller than the sum of its proper divisors (14026802356).

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

13356122444 is a wasteful number, since it uses less digits than its factorization.

13356122444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8198 (or 8196 counting only the distinct ones).

The product of its digits is 69120, while the sum is 35.

Adding to 13356122444 its reverse (44422165331), we get a palindrome (57778287775).

The spelling of 13356122444 in words is "thirteen billion, three hundred fifty-six million, one hundred twenty-two thousand, four hundred forty-four".