What is the sum of the first 144 decimal digits of pi?

Pi to 144 decimal places is written thus:

3.14159265358979323846264338327950288419716939937510

58209749445923078164062862089986280348253421170679

82148086513282306647093844609550582231725359

The sum of these first 144 decimal digits (after the decimal point) is 666.