215016164 has 48 divisors (see below), whose sum is σ = 422343936. Its totient is φ = 94944000.

The previous prime is 215016163. The next prime is 215016169. The reversal of 215016164 is 461610512.

It is not an unprimeable number, because it can be changed into a prime (215016163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357464 + ... + 358064.

It is an arithmetic number, because the mean of its divisors is an integer number (8798832).

Almost surely, 2^215016164 is an apocalyptic number.

It is an amenable number.

215016164 is a deficient number, since it is larger than the sum of its proper divisors (207327772).

215016164 is a wasteful number, since it uses less digits than its factorization.

215016164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836 (or 834 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 215016164 is about 14663.4294760810. The cubic root of 215016164 is about 599.0876541523.

Adding to 215016164 its reverse (461610512), we get a palindrome (676626676).

The spelling of 215016164 in words is "two hundred fifteen million, sixteen thousand, one hundred sixty-four".