165504166 has 8 divisors (see below), whose sum is σ = 248441184. Its totient is φ = 82690440.

The previous prime is 165504151. The next prime is 165504187. The reversal of 165504166 is 661405561.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27390 + ... + 32881.

It is an arithmetic number, because the mean of its divisors is an integer number (31055148).

Almost surely, 2^165504166 is an apocalyptic number.

165504166 is a deficient number, since it is larger than the sum of its proper divisors (82937018).

165504166 is a wasteful number, since it uses less digits than its factorization.

165504166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61646.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 165504166 is about 12864.8422454378. The cubic root of 165504166 is about 549.0387241915.

The spelling of 165504166 in words is "one hundred sixty-five million, five hundred four thousand, one hundred sixty-six".