166023223 has 16 divisors (see below), whose sum is σ = 177831936. Its totient is φ = 154633600.

The previous prime is 166023167. The next prime is 166023229. The reversal of 166023223 is 322320661.

It is a happy number.

166023223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 166023223 - 2⁹ = 166022711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166023229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413823 + ... + 414223.

It is an arithmetic number, because the mean of its divisors is an integer number (11114496).

Almost surely, 2^166023223 is an apocalyptic number.

166023223 is a deficient number, since it is larger than the sum of its proper divisors (11808713).

166023223 is a wasteful number, since it uses less digits than its factorization.

166023223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 166023223 is about 12884.9999223904. Note that the first 4 decimals coincide. The cubic root of 166023223 is about 549.6120934219.

Adding to 166023223 its reverse (322320661), we get a palindrome (488343884).

The spelling of 166023223 in words is "one hundred sixty-six million, twenty-three thousand, two hundred twenty-three".