13521243416 has 32 divisors (see below), whose sum is σ = 25444800000. Its totient is φ = 6736002336.

The previous prime is 13521243413. The next prime is 13521243451. The reversal of 13521243416 is 61434212531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13521243413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4507085 + ... + 4510083.

It is an arithmetic number, because the mean of its divisors is an integer number (795150000).

Almost surely, 2^13521243416 is an apocalyptic number.

It is an amenable number.

13521243416 is a deficient number, since it is larger than the sum of its proper divisors (11923556584).

13521243416 is a wasteful number, since it uses less digits than its factorization.

13521243416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4871 (or 4867 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

Adding to 13521243416 its reverse (61434212531), we get a palindrome (74955455947).

The spelling of 13521243416 in words is "thirteen billion, five hundred twenty-one million, two hundred forty-three thousand, four hundred sixteen".