165089684 has 6 divisors (see below), whose sum is σ = 288906954. Its totient is φ = 82544840.

The previous prime is 165089681. The next prime is 165089707. The reversal of 165089684 is 486980561.

It can be written as a sum of positive squares in only one way, i.e., 146410000 + 18679684 = 12100^2 + 4322^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165089681) by changing a digit.

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, 20636207 + ... + 20636214.

It is an arithmetic number, because the mean of its divisors is an integer number (48151159).

Almost surely, 2^165089684 is an apocalyptic number.

It is an amenable number.

165089684 is a deficient number, since it is larger than the sum of its proper divisors (123817270).

165089684 is a wasteful number, since it uses less digits than its factorization.

165089684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41272425 (or 41272423 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 165089684 is about 12848.7230493929. The cubic root of 165089684 is about 548.5800108585.

The spelling of 165089684 in words is "one hundred sixty-five million, eighty-nine thousand, six hundred eighty-four".