If in doubt, for your weight I'd say nothing lower than the 1600 other people are recommending. However, you should lose at a decent rate even higher which might be better in the long run because yes, you'll lose a little slower... but it'll stay off easier and possibly less of the (dreaded!!!) loose skin!
I'm only about 2 inches taller than you and I was losing WAY more than a pound a week at 2000 cals a day when I was at your weight! In fact I was sometimes losing 5 to 10 pounds a month!
Once you start stalling, later on down the line, you could then lower it by 100 each time and hopefully pull yourself out of that plateau.
What helped me the most in the end, though, were these:
http://www.bmi-calculator.net/bmr-calculator/
It'll actually give you a calorie range and formula how to figure out what you should eat a day to lose, maintain, and how you'll gain!