Lefty loosey, righty tighty. Normal righthand threading. Clutch hub nut is lefthand or reversed threading, though.
Put the bike in 4th gear and have someone sit on it and hold on the rear brake. Use a breaker bar.
Outside of using an airgun, (not recommended by most) or using the special ring gear tool to hold it, that works fine.
Stop in our New to the Community section and give us a shout, and tell us about yourself/bike.

__________________
HERD meber #10
DISCLAIMER: Any information, advice or child raising tips I give on this forum should be taken with a grain of salt, 8 hours sleep and at least 6 beers.
Following my instructions will likely lead to death, mental retardation and/or bodily injury, consistant with eating lead-based paint chips, and by doing so, will release me, my family and my dog from any legal action(s) for listening to anything I recommended.