166228252 has 12 divisors (see below), whose sum is σ = 295830360. Its totient is φ = 81705296.

The previous prime is 166228243. The next prime is 166228259. The reversal of 166228252 is 252822661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166228259) 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 3 ways as a sum of consecutive naturals, for example, 351943 + ... + 352414.

It is an arithmetic number, because the mean of its divisors is an integer number (24652530).

Almost surely, 2^166228252 is an apocalyptic number.

It is an amenable number.

166228252 is a deficient number, since it is larger than the sum of its proper divisors (129602108).

166228252 is a wasteful number, since it uses less digits than its factorization.

166228252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704420 (or 704418 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 166228252 is about 12892.9535793782. The cubic root of 166228252 is about 549.8382466484.

The spelling of 166228252 in words is "one hundred sixty-six million, two hundred twenty-eight thousand, two hundred fifty-two".