216165327 has 16 divisors (see below), whose sum is σ = 331913472. Its totient is φ = 122578560.

The previous prime is 216165311. The next prime is 216165347. The reversal of 216165327 is 723561612.

It is not a de Polignac number, because 216165327 - 2⁴ = 216165311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216165307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36538 + ... + 42039.

It is an arithmetic number, because the mean of its divisors is an integer number (20744592).

Almost surely, 2^216165327 is an apocalyptic number.

216165327 is a deficient number, since it is larger than the sum of its proper divisors (115748145).

216165327 is a wasteful number, since it uses less digits than its factorization.

216165327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78718.

The product of its digits is 15120, while the sum is 33.

The square root of 216165327 is about 14702.5619196112. The cubic root of 216165327 is about 600.1530415161.

The spelling of 216165327 in words is "two hundred sixteen million, one hundred sixty-five thousand, three hundred twenty-seven".