13235898816 has 504 divisors, whose sum is σ = 46390986720. Its totient is φ = 3592802304.

The previous prime is 13235898799. The next prime is 13235898827. The reversal of 13235898816 is 61889853231.

It is a tau number, because it is divible by the number of its divisors (504).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 84305010 + ... + 84305166.

Almost surely, 2^13235898816 is an apocalyptic number.

13235898816 is a gapful number since it is divisible by the number (16) 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 13235898816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23195493360).

13235898816 is an abundant number, since it is smaller than the sum of its proper divisors (33155087904).

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

13235898816 is a wasteful number, since it uses less digits than its factorization.

13235898816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 301 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The spelling of 13235898816 in words is "thirteen billion, two hundred thirty-five million, eight hundred ninety-eight thousand, eight hundred sixteen".