165461166 has 24 divisors (see below), whose sum is σ = 386076600. Its totient is φ = 50911056.

The previous prime is 165461161. The next prime is 165461183. The reversal of 165461166 is 661164561.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 165461166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165461161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 353316 + ... + 353783.

It is an arithmetic number, because the mean of its divisors is an integer number (16086525).

Almost surely, 2^165461166 is an apocalyptic number.

165461166 is an abundant number, since it is smaller than the sum of its proper divisors (220615434).

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

165461166 is a wasteful number, since it uses less digits than its factorization.

165461166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707120 (or 707117 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 165461166 is about 12863.1709154469. The cubic root of 165461166 is about 548.9911710884.

The spelling of 165461166 in words is "one hundred sixty-five million, four hundred sixty-one thousand, one hundred sixty-six".