166433227 has 4 divisors (see below), whose sum is σ = 170492616. Its totient is φ = 162373840.

The previous prime is 166433219. The next prime is 166433237. The reversal of 166433227 is 722334661.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 166433227 - 2³ = 166433219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166433192 and 166433201.

It is not an unprimeable number, because it can be changed into a prime (166433237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2029633 + ... + 2029714.

It is an arithmetic number, because the mean of its divisors is an integer number (42623154).

Almost surely, 2^166433227 is an apocalyptic number.

166433227 is a deficient number, since it is larger than the sum of its proper divisors (4059389).

166433227 is an equidigital number, since it uses as much as digits as its factorization.

166433227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4059388.

The product of its digits is 36288, while the sum is 34.

The square root of 166433227 is about 12900.9002399057. The cubic root of 166433227 is about 550.0641544999.

Adding to 166433227 its reverse (722334661), we get a palindrome (888767888).

The spelling of 166433227 in words is "one hundred sixty-six million, four hundred thirty-three thousand, two hundred twenty-seven".