11515324365240 has 128 divisors (see below), whose sum is σ = 35238620160000. Its totient is φ = 3009751999488.

The previous prime is 11515324365197. The next prime is 11515324365247. The reversal of 11515324365240 is 4256342351511.

It is a junction number, because it is equal to n+sod(n) for n = 11515324365192 and 11515324365201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11515324365247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3134440 + ... + 5731959.

It is an arithmetic number, because the mean of its divisors is an integer number (275301720000).

Almost surely, 2^{11515324365240} is an apocalyptic number.

11515324365240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11515324365240 is an abundant number, since it is smaller than the sum of its proper divisors (23723295794760).

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

11515324365240 is a wasteful number, since it uses less digits than its factorization.

11515324365240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8866629 (or 8866625 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 11515324365240 in words is "eleven trillion, five hundred fifteen billion, three hundred twenty-four million, three hundred sixty-five thousand, two hundred forty".