I am working on a data analysis project using SPSS. I've ran my data, and one of my constants came out as:

4.205E-11

Now I can remember enough to know that this is a small number, but I cannot remember enough to figure out exactly how small.

Since it is E-11, does that mean that it is negative?

I've tried Googling this and everything, but I haven't been able to come up with much. Any help you could provide me with would be greatly appreciated.