166226233 has 2 divisors, whose sum is σ = 166226234. Its totient is φ = 166226232.

The previous prime is 166226219. The next prime is 166226239. The reversal of 166226233 is 332622661.

It is a happy number.

166226233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86713344 + 79512889 = 9312^2 + 8917^2 .

It is a cyclic number.

It is not a de Polignac number, because 166226233 - 2⁵ = 166226201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166226195 and 166226204.

It is not a weakly prime, because it can be changed into another prime (166226239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83113116 + 83113117.

It is an arithmetic number, because the mean of its divisors is an integer number (83113117).

Almost surely, 2^166226233 is an apocalyptic number.

It is an amenable number.

166226233 is a deficient number, since it is larger than the sum of its proper divisors (1).

166226233 is an equidigital number, since it uses as much as digits as its factorization.

166226233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 31.

The square root of 166226233 is about 12892.8752805571. The cubic root of 166226233 is about 549.8360205368.

Adding to 166226233 its reverse (332622661), we get a palindrome (498848894).

The spelling of 166226233 in words is "one hundred sixty-six million, two hundred twenty-six thousand, two hundred thirty-three".