165395982 has 32 divisors (see below), whose sum is σ = 334477728. Its totient is φ = 54521856.

The previous prime is 165395977. The next prime is 165395983. The reversal of 165395982 is 289593561.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165395983) 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 15 ways as a sum of consecutive naturals, for example, 269508 + ... + 270120.

It is an arithmetic number, because the mean of its divisors is an integer number (10452429).

Almost surely, 2^165395982 is an apocalyptic number.

165395982 is an abundant number, since it is smaller than the sum of its proper divisors (169081746).

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

165395982 is a wasteful number, since it uses less digits than its factorization.

165395982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044.

The product of its digits is 583200, while the sum is 48.

The square root of 165395982 is about 12860.6369204639. The cubic root of 165395982 is about 548.9190692942.

The spelling of 165395982 in words is "one hundred sixty-five million, three hundred ninety-five thousand, nine hundred eighty-two".