13520144000 has 128 divisors (see below), whose sum is σ = 36670795200. Its totient is φ = 4916352000.

The previous prime is 13520143963. The next prime is 13520144039. The reversal of 13520144000 is 44102531.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 137591 + ... + 214409.

Almost surely, 2^13520144000 is an apocalyptic number.

13520144000 is a gapful number since it is divisible by the number (10) 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 13520144000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18335397600).

13520144000 is an abundant number, since it is smaller than the sum of its proper divisors (23150651200).

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

13520144000 is an equidigital number, since it uses as much as digits as its factorization.

13520144000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76859 (or 76837 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 13520144000 its reverse (44102531), we get a palindrome (13564246531).

The spelling of 13520144000 in words is "thirteen billion, five hundred twenty million, one hundred forty-four thousand".