165170673 has 12 divisors (see below), whose sum is σ = 244399428. Its totient is φ = 107427840.

The previous prime is 165170669. The next prime is 165170683. The reversal of 165170673 is 376071561.

It can be written as a sum of positive squares in 2 ways, for example, as 4210704 + 160959969 = 2052^2 + 12687^2 .

It is not a de Polignac number, because 165170673 - 2² = 165170669 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165170633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223440 + ... + 224177.

It is an arithmetic number, because the mean of its divisors is an integer number (20366619).

Almost surely, 2^165170673 is an apocalyptic number.

It is an amenable number.

165170673 is a deficient number, since it is larger than the sum of its proper divisors (79228755).

165170673 is a wasteful number, since it uses less digits than its factorization.

165170673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447664 (or 447661 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 165170673 is about 12851.8742991052. The cubic root of 165170673 is about 548.6697028816.

The spelling of 165170673 in words is "one hundred sixty-five million, one hundred seventy thousand, six hundred seventy-three".