You all know the rules.
I'll start...
4
Numberwang
8.7
You got there before me. 
That's Numberwang!
Thirtity-seventity.
I am going out on a limb here...Pi?
TWELVETY
Pi.
Sixty-eleven?
Pi.
Thirteen and a half billion
Pi.
Repetition
37
(One for the email newsletter there!)
104
22