13161535600 has 120 divisors (see below), whose sum is σ = 33340934000. Its totient is φ = 4979128320.

The previous prime is 13161535579. The next prime is 13161535603. The reversal of 13161535600 is 653516131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13161535603) 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, 6299356 + ... + 6301444.

Almost surely, 2^13161535600 is an apocalyptic number.

13161535600 is a gapful number since it is divisible by the number (10) 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 13161535600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16670467000).

13161535600 is an abundant number, since it is smaller than the sum of its proper divisors (20179398400).

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

13161535600 is a wasteful number, since it uses less digits than its factorization.

13161535600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2955 (or 2944 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 31.

The spelling of 13161535600 in words is "thirteen billion, one hundred sixty-one million, five hundred thirty-five thousand, six hundred".