13597507008 has 168 divisors, whose sum is σ = 41082163200. Its totient is φ = 4293359616.

The previous prime is 13597507003. The next prime is 13597507043. The reversal of 13597507008 is 80070579531.

13597507008 is a `hidden beast` number, since 1 + 3 + 597 + 50 + 7 + 0 + 0 + 8 = 666.

It is a super-2 number, since 2×13597507008² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13597507003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 877633 + ... + 892991.

Almost surely, 2^13597507008 is an apocalyptic number.

13597507008 is a gapful number since it is divisible by the number (18) 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 13597507008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20541081600).

13597507008 is an abundant number, since it is smaller than the sum of its proper divisors (27484656192).

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

13597507008 is a wasteful number, since it uses less digits than its factorization.

13597507008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15459 (or 15446 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 45.

The spelling of 13597507008 in words is "thirteen billion, five hundred ninety-seven million, five hundred seven thousand, eight".