165266216 has 16 divisors (see below), whose sum is σ = 310981140. Its totient is φ = 82337920.

The previous prime is 165266209. The next prime is 165266219. The reversal of 165266216 is 612662561.

It can be written as a sum of positive squares in 2 ways, for example, as 145106116 + 20160100 = 12046^2 + 4490^2 .

It is not an unprimeable number, because it can be changed into a prime (165266219) 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 3 ways as a sum of consecutive naturals, for example, 34511 + ... + 39006.

Almost surely, 2^165266216 is an apocalyptic number.

It is an amenable number.

165266216 is a deficient number, since it is larger than the sum of its proper divisors (145714924).

165266216 is a wasteful number, since it uses less digits than its factorization.

165266216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73804 (or 73800 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 165266216 is about 12855.5908460094. The cubic root of 165266216 is about 548.7754751795.

The spelling of 165266216 in words is "one hundred sixty-five million, two hundred sixty-six thousand, two hundred sixteen".