13320033144 has 128 divisors (see below), whose sum is σ = 38364537600. Its totient is φ = 3811415040.

The previous prime is 13320033121. The next prime is 13320033149. The reversal of 13320033144 is 44133002331.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13320033149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1585884 + ... + 1594260.

It is an arithmetic number, because the mean of its divisors is an integer number (299722950).

Almost surely, 2^13320033144 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 13320033144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19182268800).

13320033144 is an abundant number, since it is smaller than the sum of its proper divisors (25044504456).

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

13320033144 is a wasteful number, since it uses less digits than its factorization.

13320033144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8733 (or 8729 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 13320033144 its reverse (44133002331), we get a palindrome (57453035475).

The spelling of 13320033144 in words is "thirteen billion, three hundred twenty million, thirty-three thousand, one hundred forty-four".