Found this on a website.
On your laptop keyboard you should have a second set of numbers that are the same as the number pad on a regular keyboard. On a Dell laptop they are in Blue and on the M, J, K, L, U, I, O, 7, 8, 9 keys. You probably need to press the Function (Fn) key to access them.
If you hold down ALT and Fn and type 0169 using the alternative number keys it will work
If that doesnt work try this, Hold down fn key and turn on numbers lock. Then hold down the alt key and type 0169. Only remember to shut of numbers lock after typing copyright symbol or else you can't use the letters that have a number on them