11515343014215 has 48 divisors (see below), whose sum is σ = 20025333656640. Its totient is φ = 6121408204800.

The previous prime is 11515343014193. The next prime is 11515343014229. The reversal of 11515343014215 is 51241034351511.

11515343014215 is a `hidden beast` number, since 1 + 1 + 5 + 1 + 5 + 3 + 430 + 1 + 4 + 215 = 666.

It is not a de Polignac number, because 11515343014215 - 2⁶ = 11515343014151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11515343014215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32992615 + ... + 33339815.

It is an arithmetic number, because the mean of its divisors is an integer number (417194451180).

Almost surely, 2^{11515343014215} is an apocalyptic number.

11515343014215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11515343014215 is a deficient number, since it is larger than the sum of its proper divisors (8509990642425).

11515343014215 is a wasteful number, since it uses less digits than its factorization.

11515343014215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349624 (or 349621 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

Adding to 11515343014215 its reverse (51241034351511), we get a palindrome (62756377365726).

The spelling of 11515343014215 in words is "eleven trillion, five hundred fifteen billion, three hundred forty-three million, fourteen thousand, two hundred fifteen".