115651515515 has 8 divisors (see below), whose sum is σ = 139612848480. Its totient is φ = 91967192512.

The previous prime is 115651515509. The next prime is 115651515523. The reversal of 115651515515 is 515515156511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115651515515 - 2⁶ = 115651515451 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69251570 + ... + 69253239.

It is an arithmetic number, because the mean of its divisors is an integer number (17451606060).

Almost surely, 2^115651515515 is an apocalyptic number.

115651515515 is a deficient number, since it is larger than the sum of its proper divisors (23961332965).

115651515515 is a wasteful number, since it uses less digits than its factorization.

115651515515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138504981.

The product of its digits is 93750, while the sum is 41.

The spelling of 115651515515 in words is "one hundred fifteen billion, six hundred fifty-one million, five hundred fifteen thousand, five hundred fifteen".