165230216 has 8 divisors (see below), whose sum is σ = 309806670. Its totient is φ = 82615104.

The previous prime is 165230201. The next prime is 165230269. The reversal of 165230216 is 612032561.

It can be written as a sum of positive squares in only one way, i.e., 165225316 + 4900 = 12854^2 + 70^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10326881 + ... + 10326896.

Almost surely, 2^165230216 is an apocalyptic number.

It is an amenable number.

165230216 is a deficient number, since it is larger than the sum of its proper divisors (144576454).

165230216 is a wasteful number, since it uses less digits than its factorization.

165230216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20653783 (or 20653779 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 165230216 is about 12854.1906007341. The cubic root of 165230216 is about 548.7356256321.

Adding to 165230216 its reverse (612032561), we get a palindrome (777262777).

The spelling of 165230216 in words is "one hundred sixty-five million, two hundred thirty thousand, two hundred sixteen".