166230305 has 16 divisors (see below), whose sum is σ = 204422400. Its totient is φ = 129706752.

The previous prime is 166230293. The next prime is 166230329. The reversal of 166230305 is 503032661.

It is a cyclic number.

It is not a de Polignac number, because 166230305 - 2⁸ = 166230049 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78146 + ... + 80244.

It is an arithmetic number, because the mean of its divisors is an integer number (12776400).

Almost surely, 2^166230305 is an apocalyptic number.

It is an amenable number.

166230305 is a deficient number, since it is larger than the sum of its proper divisors (38192095).

166230305 is a wasteful number, since it uses less digits than its factorization.

166230305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2488.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 166230305 is about 12893.0331962653. The cubic root of 166230305 is about 549.8405102292.

Adding to 166230305 its reverse (503032661), we get a palindrome (669262966).

The spelling of 166230305 in words is "one hundred sixty-six million, two hundred thirty thousand, three hundred five".