13399157000 has 64 divisors (see below), whose sum is σ = 31444686000. Its totient is φ = 5344166400.

The previous prime is 13399156997. The next prime is 13399157039. The reversal of 13399157000 is 75199331.

It can be written as a sum of positive squares in 8 ways, for example, as 558187876 + 12840969124 = 23626^2 + 113318^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 329804 + ... + 368196.

Almost surely, 2^13399157000 is an apocalyptic number.

13399157000 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 13399157000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15722343000).

13399157000 is an abundant number, since it is smaller than the sum of its proper divisors (18045529000).

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

13399157000 is a wasteful number, since it uses less digits than its factorization.

13399157000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38763 (or 38749 counting only the distinct ones).

The product of its (nonzero) digits is 25515, while the sum is 38.

The spelling of 13399157000 in words is "thirteen billion, three hundred ninety-nine million, one hundred fifty-seven thousand".