86221615115 has 4 divisors (see below), whose sum is σ = 103465938144. Its totient is φ = 68977292088.

The previous prime is 86221615099. The next prime is 86221615157. The reversal of 86221615115 is 51151612268.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86221615115 - 2⁴ = 86221615099 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8622161507 + ... + 8622161516.

It is an arithmetic number, because the mean of its divisors is an integer number (25866484536).

Almost surely, 2^86221615115 is an apocalyptic number.

86221615115 is a deficient number, since it is larger than the sum of its proper divisors (17244323029).

86221615115 is a wasteful number, since it uses less digits than its factorization.

86221615115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17244323028.

The product of its digits is 28800, while the sum is 38.

The spelling of 86221615115 in words is "eighty-six billion, two hundred twenty-one million, six hundred fifteen thousand, one hundred fifteen".