[1] http://www.energystar.gov/ia/home_improvement/HPwES_Utility_Intro_FactSheet.pdf. [2] http://www.homestarcoalition.org/about.html. [3] http://www.mckinsey.com/clientservice/electricpowernaturalgas/US_energy_efficiency/. There are no classes in ALL, ALL for WAP.
The biggest/largest integer that can be stored in a double without losing precision is the same as the largest possible value of a double. That is, DBL_MAX or approximately 1.8 Ã 10 308 (if your double is an IEEE 754 64-bit double). It's an integer. It's represented exactly.
Go on, ask me what the largest integer is, such that it and all smaller integers can be stored in IEEE 64-bit doubles without losing precision. An IEEE 64-bit double has 52 bits of mantissa, so I think it's 2 53 1  : 2 53 + 1 cannot be stored, because the 1 at the start and the 1 at the end have too many zeros in between.