13144452225520 has 160 divisors (see below), whose sum is σ = 39330932944896. Its totient is φ = 3964811673600.

The previous prime is 13144452225491. The next prime is 13144452225539. The reversal of 13144452225520 is 2552225444131.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 34225809 + ... + 34607728.

Almost surely, 2^{13144452225520} is an apocalyptic number.

13144452225520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13144452225520 is an abundant number, since it is smaller than the sum of its proper divisors (26186480719376).

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

13144452225520 is a wasteful number, since it uses less digits than its factorization.

13144452225520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68833599 (or 68833593 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 40.

Adding to 13144452225520 its reverse (2552225444131), we get a palindrome (15696677669651).

The spelling of 13144452225520 in words is "thirteen trillion, one hundred forty-four billion, four hundred fifty-two million, two hundred twenty-five thousand, five hundred twenty".