166228233 has 12 divisors (see below), whose sum is σ = 225345744. Its totient is φ = 108994800.

The previous prime is 166228217. The next prime is 166228243. The reversal of 166228233 is 332822661.

It is a happy number.

It is not a de Polignac number, because 166228233 - 2⁴ = 166228217 is a prime.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 166228194 and 166228203.

It is not an unprimeable number, because it can be changed into a prime (166228213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3718 + ... + 18608.

It is an arithmetic number, because the mean of its divisors is an integer number (18778812).

Almost surely, 2^166228233 is an apocalyptic number.

It is an amenable number.

166228233 is a deficient number, since it is larger than the sum of its proper divisors (59117511).

166228233 is an equidigital number, since it uses as much as digits as its factorization.

166228233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15016 (or 14955 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The square root of 166228233 is about 12892.9528425415. The cubic root of 166228233 is about 549.8382256994.

The spelling of 166228233 in words is "one hundred sixty-six million, two hundred twenty-eight thousand, two hundred thirty-three".