165673170 has 48 divisors (see below), whose sum is σ = 463888152. Its totient is φ = 40780800.

The previous prime is 165673139. The next prime is 165673171. The reversal of 165673170 is 71376561.

165673170 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 150626529 + 15046641 = 12273^2 + 3879^2 .

It is a super-3 number, since 3×165673170³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (165673171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69631 + ... + 71970.

Almost surely, 2^165673170 is an apocalyptic number.

165673170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165673170 is an abundant number, since it is smaller than the sum of its proper divisors (298214982).

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

165673170 is a wasteful number, since it uses less digits than its factorization.

165673170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141627 (or 141624 counting only the distinct ones).

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

The square root of 165673170 is about 12871.4090137793. The cubic root of 165673170 is about 549.2255436067.

The spelling of 165673170 in words is "one hundred sixty-five million, six hundred seventy-three thousand, one hundred seventy".