166006212 has 24 divisors (see below), whose sum is σ = 396796512. Its totient is φ = 53985600.

The previous prime is 166006201. The next prime is 166006219. The reversal of 166006212 is 212600661.

It is not an unprimeable number, because it can be changed into a prime (166006219) 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 7 ways as a sum of consecutive naturals, for example, 168214 + ... + 169197.

It is an arithmetic number, because the mean of its divisors is an integer number (16533188).

Almost surely, 2^166006212 is an apocalyptic number.

166006212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166006212 is an abundant number, since it is smaller than the sum of its proper divisors (230790300).

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

166006212 is a wasteful number, since it uses less digits than its factorization.

166006212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337459 (or 337457 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 166006212 is about 12884.3397968231. The cubic root of 166006212 is about 549.5933214082.

Adding to 166006212 its reverse (212600661), we get a palindrome (378606873).

The spelling of 166006212 in words is "one hundred sixty-six million, six thousand, two hundred twelve".