215201170115 has 8 divisors (see below), whose sum is σ = 258244249248. Its totient is φ = 172159039360.

The previous prime is 215201170091. The next prime is 215201170133. The reversal of 215201170115 is 511071102512.

215201170115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 215201170115 - 2¹⁶ = 215201104579 is a prime.

It is a super-2 number, since 2×215201170115² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435674 + ... + 787536.

It is an arithmetic number, because the mean of its divisors is an integer number (32280531156).

Almost surely, 2^215201170115 is an apocalyptic number.

215201170115 is a deficient number, since it is larger than the sum of its proper divisors (43043079133).

215201170115 is a wasteful number, since it uses less digits than its factorization.

215201170115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474189.

The product of its (nonzero) digits is 700, while the sum is 26.

Adding to 215201170115 its reverse (511071102512), we get a palindrome (726272272627).

The spelling of 215201170115 in words is "two hundred fifteen billion, two hundred one million, one hundred seventy thousand, one hundred fifteen".