Quote Originally Posted by Diamndzngunz
The total experience needed to reach level 60 is 4,084,700. The total for 60 to 70 is 6,762,300, making 1 to 70 10,847,000 points in total.

The total number of same-level mobs that must be killed to reach level 60 with no rest or quests is 16,971 which would take approximately 76 hours at 16 seconds per kill.

An amusing but probably not very significant figure is that the half-way point to 60 for raw experience point accumulation is 12,550 XP into level 48. Halfway to 70 for raw experience point accumulation is 344,500 XP into level 62. In actual practice, quests contribute significantly to XP so the half-way point is somewhere below this.
The segment you quoted here from WoWWiki is before 2.3.