13513156224 has 128 divisors (see below), whose sum is σ = 36815472000. Its totient is φ = 4390256640.

The previous prime is 13513156207. The next prime is 13513156331. The reversal of 13513156224 is 42265131531.

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

It is a super-2 number, since 2×13513156224² (a number of 21 digits) contains 22 as substring.

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, 2423712 + ... + 2429280.

It is an arithmetic number, because the mean of its divisors is an integer number (287620875).

Almost surely, 2^13513156224 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 13513156224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18407736000).

13513156224 is an abundant number, since it is smaller than the sum of its proper divisors (23302315776).

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

13513156224 is an equidigital number, since it uses as much as digits as its factorization.

13513156224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5746 (or 5734 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

Adding to 13513156224 its reverse (42265131531), we get a palindrome (55778287755).

The spelling of 13513156224 in words is "thirteen billion, five hundred thirteen million, one hundred fifty-six thousand, two hundred twenty-four".