165350216 has 8 divisors (see below), whose sum is σ = 310031670. Its totient is φ = 82675104.

The previous prime is 165350209. The next prime is 165350219. The reversal of 165350216 is 612053561.

It can be written as a sum of positive squares in only one way, i.e., 159921316 + 5428900 = 12646^2 + 2330^2 .

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

It is not an unprimeable number, because it can be changed into a prime (165350219) 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 as a sum of consecutive naturals, namely, 10334381 + ... + 10334396.

Almost surely, 2^165350216 is an apocalyptic number.

It is an amenable number.

165350216 is a deficient number, since it is larger than the sum of its proper divisors (144681454).

165350216 is a wasteful number, since it uses less digits than its factorization.

165350216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20668783 (or 20668779 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 165350216 is about 12858.8574920169. The cubic root of 165350216 is about 548.8684349574.

The spelling of 165350216 in words is "one hundred sixty-five million, three hundred fifty thousand, two hundred sixteen".