I checked "over 150" but this really depends on the test, etc. The human mind has analogies to computers. A computer has RAM, hard drive, interfaces, software, etc. Just because a computer has a top quality RAM does not mean that the hard drive holds much. Similarly, there are all types of software, and a computer may have some types but not others. Consequently, attempting to summarize a person's intelligence with one variable, like IQ, is not very valuable.
It is useful for any person to understand what parts of the person's intelligence correspond to high and low quality computer components. I am extremely good at some types of math, for example. That is part of why I was professionally tested with an IQ of 150 when I was 14 years old. Six years later when I took a GMAT, I had a perfect score on the math section. On the other hand, like most aspies, some components of my software are pretty poor. I am very poor at noticing other people's emotions (even though I have lots of sympathy for other people).
A more useful question than "what is your IQ?" would be "what are the specs on your computer?"