Just because I like to kick stuff around:
$700,000,000,000.00 @ 5.5% for 30 years*...
Country's Monthly Payment = $3,974,523,009
Individual Monthly Payment (est. population 300,000,000) = $13.25
Estimated Interest Paid = $719,252,117,372

Just think of it as a cable bill for the next thirty years, only the entertainment value is not as good. Not too bad, right? Unless you have three kids and a wife that stays at home.

*Amortization Table: This table has trouble displaying the extra zero needed for the large number. The calculations are correct, as far as I can tell.