166226 has 8 divisors (see below), whose sum is σ = 264060. Its totient is φ = 78208.

The previous prime is 166219. The next prime is 166237. The reversal of 166226 is 622661.

It can be written as a sum of positive squares in 2 ways, for example, as 156025 + 10201 = 395^2 + 101^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2411 + ... + 2478.

2¹⁶⁶²²⁶ is an apocalyptic number.

166226 is a deficient number, since it is larger than the sum of its proper divisors (97834).

166226 is a wasteful number, since it uses less digits than its factorization.

166226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4908.

The product of its digits is 864, while the sum is 23.

The square root of 166226 is about 407.7082290070. The cubic root of 166226 is about 54.9835763634.

Adding to 166226 its reverse (622661), we get a palindrome (788887).

The spelling of 166226 in words is "one hundred sixty-six thousand, two hundred twenty-six".