165000216 has 32 divisors (see below), whose sum is σ = 415278000. Its totient is φ = 54629760.

The previous prime is 165000211. The next prime is 165000217. The reversal of 165000216 is 612000561.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 165000192 and 165000201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165000211) 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 7 ways as a sum of consecutive naturals, for example, 19495 + ... + 26646.

Almost surely, 2^165000216 is an apocalyptic number.

It is an amenable number.

165000216 is an abundant number, since it is smaller than the sum of its proper divisors (250277784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165000216 is a wasteful number, since it uses less digits than its factorization.

165000216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46299 (or 46295 counting only the distinct ones).

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

The square root of 165000216 is about 12845.2409864510. The cubic root of 165000216 is about 548.4808945802.

Adding to 165000216 its reverse (612000561), we get a palindrome (777000777).

The spelling of 165000216 in words is "one hundred sixty-five million, two hundred sixteen", and thus it is an aban number.