166263226 has 8 divisors (see below), whose sum is σ = 254100564. Its totient is φ = 81563040.

The previous prime is 166263217. The next prime is 166263233. The reversal of 166263226 is 622362661.

166263226 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 141253225 + 25010001 = 11885^2 + 5001^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 166263191 and 166263200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 784155 + ... + 784366.

Almost surely, 2^166263226 is an apocalyptic number.

166263226 is a deficient number, since it is larger than the sum of its proper divisors (87837338).

166263226 is a wasteful number, since it uses less digits than its factorization.

166263226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568576.

The product of its digits is 31104, while the sum is 34.

The square root of 166263226 is about 12894.3098303089. The cubic root of 166263226 is about 549.8768054656.

The spelling of 166263226 in words is "one hundred sixty-six million, two hundred sixty-three thousand, two hundred twenty-six".