4665 = 3 x 5 x 311.
4665 is 33333 in base 6.
4665 is a divisor of 5220 - 1.
The sum of the squares of the digits of 4665 is equal to the largest prime factor reversed, where the largest prime factor is not a palindrome: 42 + 62 + 62 + 52 = 113.
IC 4665 is one of the brighter clusters in the Milky Way galaxy.