That is the number of items on my computer, according to the virus check I ran last night (which also suggests they are all clean). That is a fairly mind-boggling number; not by sheer size but because I could easily name the purpose of a few thousand of those at most and the rest are files that I hope have some beneficent purpose but which I would find hard to categorise more precisely.
The reason I fired off the scan and paid more attention than usual to the all-clear is that I have been alerted by a friend that visiting my blog was throwing up a message about a trojan. I’ve seen a few messages recently about access to high risk sites being blocked but haven’t pinned down anything specifically related to my pages. If you have seen a similar message and any further details come to mind, do please let me know so I can continue hunting the problem down!