13109995040 has 24 divisors (see below), whose sum is σ = 30972363660. Its totient is φ = 5243997952.

The previous prime is 13109995027. The next prime is 13109995061. The reversal of 13109995040 is 4059990131.

It can be written as a sum of positive squares in 2 ways, for example, as 11956985104 + 1153009936 = 109348^2 + 33956^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40968575 + ... + 40968894.

Almost surely, 2^13109995040 is an apocalyptic number.

13109995040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13109995040 is an abundant number, since it is smaller than the sum of its proper divisors (17862368620).

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

13109995040 is an equidigital number, since it uses as much as digits as its factorization.

13109995040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81937484 (or 81937476 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 41.

The spelling of 13109995040 in words is "thirteen billion, one hundred nine million, nine hundred ninety-five thousand, forty".