13253251616 has 48 divisors (see below), whose sum is σ = 28854348768. Its totient is φ = 5941670400.

The previous prime is 13253251601. The next prime is 13253251651. The reversal of 13253251616 is 61615235231.

It is a super-2 number, since 2×13253251616² (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 7 ways as a sum of consecutive naturals, for example, 232190 + ... + 283581.

It is an arithmetic number, because the mean of its divisors is an integer number (601132266).

Almost surely, 2^13253251616 is an apocalyptic number.

13253251616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13253251616 is an abundant number, since it is smaller than the sum of its proper divisors (15601097152).

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

13253251616 is a wasteful number, since it uses less digits than its factorization.

13253251616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515865 (or 515857 counting only the distinct ones).

The product of its digits is 32400, while the sum is 35.

Adding to 13253251616 its reverse (61615235231), we get a palindrome (74868486847).

The spelling of 13253251616 in words is "thirteen billion, two hundred fifty-three million, two hundred fifty-one thousand, six hundred sixteen".