115217641655515 has 8 divisors (see below), whose sum is σ = 158012765699040. Its totient is φ = 79006382849472.

The previous prime is 115217641655497. The next prime is 115217641655527. The reversal of 115217641655515 is 515556146712511.

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 115217641655515 - 2¹⁹ = 115217641131227 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1645966309330 + ... + 1645966309399.

It is an arithmetic number, because the mean of its divisors is an integer number (19751595712380).

Almost surely, 2^{115217641655515} is an apocalyptic number.

115217641655515 is a deficient number, since it is larger than the sum of its proper divisors (42795124043525).

115217641655515 is an equidigital number, since it uses as much as digits as its factorization.

115217641655515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3291932618741.

The product of its digits is 6300000, while the sum is 55.

The spelling of 115217641655515 in words is "one hundred fifteen trillion, two hundred seventeen billion, six hundred forty-one million, six hundred fifty-five thousand, five hundred fifteen".