166327223 has 2 divisors, whose sum is σ = 166327224. Its totient is φ = 166327222.

The previous prime is 166327199. The next prime is 166327243. The reversal of 166327223 is 322723661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166327223 - 2¹⁸ = 166065079 is a prime.

It is a super-2 number, since 2×166327223² = 55329490221783458, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 166327223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166327243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83163611 + 83163612.

It is an arithmetic number, because the mean of its divisors is an integer number (83163612).

Almost surely, 2^166327223 is an apocalyptic number.

166327223 is a deficient number, since it is larger than the sum of its proper divisors (1).

166327223 is an equidigital number, since it uses as much as digits as its factorization.

166327223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 32.

The square root of 166327223 is about 12896.7911900596. The cubic root of 166327223 is about 549.9473481278.

The spelling of 166327223 in words is "one hundred sixty-six million, three hundred twenty-seven thousand, two hundred twenty-three".