Do i get serial number from downloading Adobe Creative Suite Cs6 Apps 2017

there is no cs6 2017.

there is an older cs6 (that used serial numbers).

there is a current creative cloud 2017 that includes all version back to cs6 and up to cc 2017

creative cloud (cc) does not use a serial number and creative cloud subscribers to not have any serial numbers associated with their programs.  creative cloud subscribers use their adobe id to activate their programs.

download and install the creative cloud desktop app (after signing in with your adobe id - the same one you used to pay for your creative cloud subscription),  https://creative.adobe.com/products/creative-cloud

open the desktop app (a  shortcut will be on your desktop) > click apps and then select the programs you want to install.

the desktop app gives you access to cs6, cc, cc 2014 and cc 2015 apps.  and probably more in the future.

if you already have the cc desktop app and you need to refresh your adobe id, sign out and then back in to your cc desktop application using the same adobe id used to pay for your subscription:  http://helpx.adobe.com/creative-cloud/kb/sign-in-out-creative-cloud-desktop-app.html