It is a happy number.
166556232 is a `hidden beast` number, since 1 + 6 + 65 + 562 + 32 = 666.
166556232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
Almost surely, 2166556232 is an apocalyptic number.
166556232 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.
166556232 is a wasteful number, since it uses less digits than its factorization.
166556232 is an evil number, because the sum of its binary digits is even.
The square root of 166556232 is about 12905.6666623619. Note that the first 5 decimals coincide. The cubic root of 166556232 is about 550.1996322144.
The spelling of 166556232 in words is "one hundred sixty-six million, five hundred fifty-six thousand, two hundred thirty-two".