165049384 has 8 divisors (see below), whose sum is σ = 309467610. Its totient is φ = 82524688.

The previous prime is 165049361. The next prime is 165049393. The reversal of 165049384 is 483940561.

It can be written as a sum of positive squares in only one way, i.e., 144528484 + 20520900 = 12022^2 + 4530^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 10315579 + ... + 10315594.

Almost surely, 2^165049384 is an apocalyptic number.

It is an amenable number.

165049384 is a deficient number, since it is larger than the sum of its proper divisors (144418226).

165049384 is a wasteful number, since it uses less digits than its factorization.

165049384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20631179 (or 20631175 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 165049384 is about 12847.1547044472. The cubic root of 165049384 is about 548.5353693177.

The spelling of 165049384 in words is "one hundred sixty-five million, forty-nine thousand, three hundred eighty-four".