It is a tau number, because it is divible by the number of its divisors (48).
It is an unprimeable number.
Almost surely, 2165644832 is an apocalyptic number.
165644832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
165644832 is a wasteful number, since it uses less digits than its factorization.
165644832 is an odious number, because the sum of its binary digits is odd.
The square root of 165644832 is about 12870.3081548190. The cubic root of 165644832 is about 549.1942272486.
The spelling of 165644832 in words is "one hundred sixty-five million, six hundred forty-four thousand, eight hundred thirty-two".