It depends upon multiple factors, i.e., terrain, antennas, etc. Can you talk to them on 11 meters? 10 meters is going to have similar propagation. You may be able to communicate directly on 2 meters, but again, it's dependent upon terrain, antennas.
The AT-6666 didn't get extremely good reviews on Amazon, plus it's a lot of money for a single band radio. I've got a Stryker SR-94HPC that I use on long trips, in addition to an Icom IC-V8000 and an Icom IC-7100. The Stryker is similar to the Anytone, but at half the cost. The Icom IC-7100 gives me HF/VHF/UHF all in one package at a reasonable price. The Yaesu FT-991a has similar capabilities. Are there VHF/UHF repeaters in your area?
In any case, congratulations on getting your license. Part of the joy of amateur radio is experimentation, so you'll experience that in finding the best band to communicate with your friends. Oh yeah, you're better off spending money on antennas, rather than more powerful radios. Welcome to the group!