13218016524 has 12 divisors (see below), whose sum is σ = 30842038584. Its totient is φ = 4406005504.

The previous prime is 13218016481. The next prime is 13218016573. The reversal of 13218016524 is 42561081231.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550750677 + ... + 550750700.

It is an arithmetic number, because the mean of its divisors is an integer number (2570169882).

Almost surely, 2^13218016524 is an apocalyptic number.

It is an amenable number.

13218016524 is an abundant number, since it is smaller than the sum of its proper divisors (17624022060).

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

13218016524 is a wasteful number, since it uses less digits than its factorization.

13218016524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101501384 (or 1101501382 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

Adding to 13218016524 its reverse (42561081231), we get a palindrome (55779097755).

The spelling of 13218016524 in words is "thirteen billion, two hundred eighteen million, sixteen thousand, five hundred twenty-four".