216000165 has 8 divisors (see below), whose sum is σ = 345600288. Its totient is φ = 115200080.

The previous prime is 216000139. The next prime is 216000179. The reversal of 216000165 is 561000612.

It is a happy number.

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

It is not a de Polignac number, because 216000165 - 2⁶ = 216000101 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7199991 + ... + 7200020.

It is an arithmetic number, because the mean of its divisors is an integer number (43200036).

Almost surely, 2^216000165 is an apocalyptic number.

It is an amenable number.

216000165 is a deficient number, since it is larger than the sum of its proper divisors (129600123).

216000165 is a wasteful number, since it uses less digits than its factorization.

216000165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14400019.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 216000165 is about 14696.9440701120. The cubic root of 216000165 is about 600.0001527777. Note that the first 3 decimals are identical.

Adding to 216000165 its reverse (561000612), we get a palindrome (777000777).

The spelling of 216000165 in words is "two hundred sixteen million, one hundred sixty-five", and thus it is an aban number.