166245323 has 2 divisors, whose sum is σ = 166245324. Its totient is φ = 166245322.

The previous prime is 166245301. The next prime is 166245337. The reversal of 166245323 is 323542661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166245323 - 2²⁶ = 99136459 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166245323.

It is not a weakly prime, because it can be changed into another prime (166245523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83122661 + 83122662.

It is an arithmetic number, because the mean of its divisors is an integer number (83122662).

Almost surely, 2^166245323 is an apocalyptic number.

166245323 is a deficient number, since it is larger than the sum of its proper divisors (1).

166245323 is an equidigital number, since it uses as much as digits as its factorization.

166245323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 32.

The square root of 166245323 is about 12893.6155906712. The cubic root of 166245323 is about 549.8570680928.

Adding to 166245323 its reverse (323542661), we get a palindrome (489787984).

The spelling of 166245323 in words is "one hundred sixty-six million, two hundred forty-five thousand, three hundred twenty-three".