115512400515 has 64 divisors (see below), whose sum is σ = 192483993600. Its totient is φ = 59117919744.

The previous prime is 115512400499. The next prime is 115512400519. The reversal of 115512400515 is 515004215511.

It is not a de Polignac number, because 115512400515 - 2⁴ = 115512400499 is a prime.

It is a super-2 number, since 2×115512400515² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115512400519) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6711541 + ... + 6728729.

It is an arithmetic number, because the mean of its divisors is an integer number (3007562400).

Almost surely, 2^115512400515 is an apocalyptic number.

115512400515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

115512400515 is a deficient number, since it is larger than the sum of its proper divisors (76971593085).

115512400515 is a wasteful number, since it uses less digits than its factorization.

115512400515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17436.

The product of its (nonzero) digits is 5000, while the sum is 30.

The spelling of 115512400515 in words is "one hundred fifteen billion, five hundred twelve million, four hundred thousand, five hundred fifteen".