11515050016500 has 48 divisors (see below), whose sum is σ = 33531825652416. Its totient is φ = 3070680004000.

The previous prime is 11515050016471. The next prime is 11515050016501. The reversal of 11515050016500 is 561005051511.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11515050016501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3838348506 + ... + 3838351505.

It is an arithmetic number, because the mean of its divisors is an integer number (698579701092).

Almost surely, 2^{11515050016500} is an apocalyptic number.

11515050016500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11515050016500 is an abundant number, since it is smaller than the sum of its proper divisors (22016775635916).

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

11515050016500 is a wasteful number, since it uses less digits than its factorization.

11515050016500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7676700033 (or 7676700021 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 30.

The spelling of 11515050016500 in words is "eleven trillion, five hundred fifteen billion, fifty million, sixteen thousand, five hundred".