Final answer:
To evaluate the expression, we perform the multiplication and addition to get the final result.
Step-by-step explanation:
To evaluate the expression 555555555555555555555555555555555 + 5555555667556 × 666666666666, we first perform the multiplication:
5555555667556 × 666666666666 = 3,703,703,703,703,703,703,703,703,703,703,428,248.
Then, we add this result to the original number:
555555555555555555555555555555555 + 3,703,703,703,703,703,703,703,703,703,703,428,248 = 3,703,703,703,703,703,703,703,703,703,703,983,803.