13515115380 has 96 divisors (see below), whose sum is σ = 41361688704. Its totient is φ = 3277131264.

The previous prime is 13515115363. The next prime is 13515115417. The reversal of 13515115380 is 8351151531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77047 + ... + 181566.

It is an arithmetic number, because the mean of its divisors is an integer number (430850924).

Almost surely, 2^13515115380 is an apocalyptic number.

13515115380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13515115380 is an abundant number, since it is smaller than the sum of its proper divisors (27846573324).

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

13515115380 is a wasteful number, since it uses less digits than its factorization.

13515115380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258705 (or 258703 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 33.

The spelling of 13515115380 in words is "thirteen billion, five hundred fifteen million, one hundred fifteen thousand, three hundred eighty".