165362663 has 16 divisors (see below), whose sum is σ = 176567040. Its totient is φ = 154528704.

The previous prime is 165362653. The next prime is 165362677. The reversal of 165362663 is 366263561.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 165362663 - 2⁴ = 165362647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165362653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315920 + ... + 316442.

It is an arithmetic number, because the mean of its divisors is an integer number (11035440).

Almost surely, 2^165362663 is an apocalyptic number.

165362663 is a deficient number, since it is larger than the sum of its proper divisors (11204377).

165362663 is a wasteful number, since it uses less digits than its factorization.

165362663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838.

The product of its digits is 116640, while the sum is 38.

The square root of 165362663 is about 12859.3414683645. The cubic root of 165362663 is about 548.8822069261.

The spelling of 165362663 in words is "one hundred sixty-five million, three hundred sixty-two thousand, six hundred sixty-three".