165152566 has 8 divisors (see below), whose sum is σ = 247794624. Its totient is φ = 82554360.

The previous prime is 165152513. The next prime is 165152599. The reversal of 165152566 is 665251561.

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 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, 1116 + ... + 18208.

It is an arithmetic number, because the mean of its divisors is an integer number (30974328).

Almost surely, 2^165152566 is an apocalyptic number.

165152566 is a deficient number, since it is larger than the sum of its proper divisors (82642058).

165152566 is a wasteful number, since it uses less digits than its factorization.

165152566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21926.

The product of its digits is 54000, while the sum is 37.

The square root of 165152566 is about 12851.1698300194. The cubic root of 165152566 is about 548.6496526608.

The spelling of 165152566 in words is "one hundred sixty-five million, one hundred fifty-two thousand, five hundred sixty-six".