<div title="Combined score of the question and all answers" class="answer-votes extra-large">11571</div>
As others recent bug reports, this one is minor bug, too and happens once a year. (11571 votes)
The number shown is, as noted by the caption, the total score of the question and all answers, intended to show the net wisdom (or something like wisdom) in that question.
It should, however, have been using the "11.6k" abbreviated form. This has# been corrected (the caption now# also includes the unabbreviated score, just in case you care about the last few votes).