11515000255320 has 64 divisors (see below), whose sum is σ = 34545435786720. Its totient is φ = 3070628066304.

The previous prime is 11515000255307. The next prime is 11515000255357. The reversal of 11515000255320 is 2355200051511.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 9692892 + ... + 10815828.

Almost surely, 2^{11515000255320} is an apocalyptic number.

11515000255320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11515000255320 is an abundant number, since it is smaller than the sum of its proper divisors (23030435531400).

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

11515000255320 is a wasteful number, since it uses less digits than its factorization.

11515000255320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208404 (or 1208400 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 30.

The spelling of 11515000255320 in words is "eleven trillion, five hundred fifteen billion, two hundred fifty-five thousand, three hundred twenty".