It is a tau number, because it is divible by the number of its divisors (24).
It is a nude number because it is divisible by every one of its digits.
It is a congruent number.
2128664 is an apocalyptic number.
It is an amenable number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128664 is a wasteful number, since it uses less digits than its factorization.
128664 is an evil number, because the sum of its binary digits is even.
The square root of 128664 is about 358.6976442632. The cubic root of 128664 is about 50.4838362804.
The spelling of 128664 in words is "one hundred twenty-eight thousand, six hundred sixty-four".