166056012 has 36 divisors (see below), whose sum is σ = 421105776. Its totient is φ = 55173600.

The previous prime is 166055987. The next prime is 166056013. The reversal of 166056012 is 210650661.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (166056013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4137 + ... + 18687.

Almost surely, 2^166056012 is an apocalyptic number.

166056012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166056012 is an abundant number, since it is smaller than the sum of its proper divisors (255049764).

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

166056012 is a wasteful number, since it uses less digits than its factorization.

166056012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14878 (or 14873 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 166056012 is about 12886.2722305561. The cubic root of 166056012 is about 549.6482731891.

The spelling of 166056012 in words is "one hundred sixty-six million, fifty-six thousand, twelve".