215155336215 has 16 divisors (see below), whose sum is σ = 346150467936. Its totient is φ = 114115536000.

The previous prime is 215155336213. The next prime is 215155336223. The reversal of 215155336215 is 512633551512.

It is not a de Polignac number, because 215155336215 - 2¹ = 215155336213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215155336213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39620736 + ... + 39626165.

It is an arithmetic number, because the mean of its divisors is an integer number (21634404246).

Almost surely, 2^215155336215 is an apocalyptic number.

215155336215 is a deficient number, since it is larger than the sum of its proper divisors (130995131721).

215155336215 is a wasteful number, since it uses less digits than its factorization.

215155336215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79247090.

The product of its digits is 135000, while the sum is 39.

Adding to 215155336215 its reverse (512633551512), we get a palindrome (727788887727).

The spelling of 215155336215 in words is "two hundred fifteen billion, one hundred fifty-five million, three hundred thirty-six thousand, two hundred fifteen".