215252116115 has 32 divisors (see below), whose sum is σ = 263548500864. Its totient is φ = 168727587840.

The previous prime is 215252116039. The next prime is 215252116129. The reversal of 215252116115 is 511611252512.

It is a de Polignac number, because none of the positive numbers 2^k-215252116115 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134784497 + ... + 134786093.

It is an arithmetic number, because the mean of its divisors is an integer number (8235890652).

Almost surely, 2^215252116115 is an apocalyptic number.

215252116115 is a deficient number, since it is larger than the sum of its proper divisors (48296384749).

215252116115 is a wasteful number, since it uses less digits than its factorization.

215252116115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3087.

The product of its digits is 6000, while the sum is 32.

Adding to 215252116115 its reverse (511611252512), we get a palindrome (726863368627).

The spelling of 215252116115 in words is "two hundred fifteen billion, two hundred fifty-two million, one hundred sixteen thousand, one hundred fifteen".