I really question the population of this school. According to the campus shown in this chapter it's around 2.25 sq. km. max. (~1.5km across its widest point on both axes.) With a population of 1,558,000 that'd give a population density of 692,444 people per square kilometer. According to this page on Wikipedia, the densest city in the world is Manila with a population density of 46,178 people per square kilometer. That's a hair under 15x the population density.
As an exercise, take the population of Manila given in that article (1780148) and divide it by the area (42.88 km).
I suggest that, rather that referring to Wikipedia articles or to cities, one simply try reducing things to human scale. These days, most of us have a clear idea either of two meters or of six feet (1.83 meters), and hence should be able to imagine an area of four square meters or of 36 square feet. Now, imagine packing 2770 people into four square meters or 2319 people into 36 square feet. Granted that the campus would not be expected to have a uniform population density, but areas with fewer people per square whatever would imply other areas of still greater density.
Of course, the reported population is intended to be absurd.