166234223 has 4 divisors (see below), whose sum is σ = 166282488. Its totient is φ = 166185960.

The previous prime is 166234219. The next prime is 166234231. The reversal of 166234223 is 322432661.

166234223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322432661 = 701 ⋅459961.

It is a cyclic number.

It is not a de Polignac number, because 166234223 - 2² = 166234219 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 (166234283) 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, 18533 + ... + 25998.

It is an arithmetic number, because the mean of its divisors is an integer number (41570622).

Almost surely, 2^166234223 is an apocalyptic number.

166234223 is a deficient number, since it is larger than the sum of its proper divisors (48265).

166234223 is an equidigital number, since it uses as much as digits as its factorization.

166234223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48264.

The product of its digits is 10368, while the sum is 29.

The square root of 166234223 is about 12893.1851378936. The cubic root of 166234223 is about 549.8448300557.

Adding to 166234223 its reverse (322432661), we get a palindrome (488666884).

The spelling of 166234223 in words is "one hundred sixty-six million, two hundred thirty-four thousand, two hundred twenty-three".