At least I have to admit that this number is truly unbelievable. A Googol is nothing special; the total number of elementary particles in the known universe is about 10 to the power of 80. If this space was packed solid with neutrons, so there was no empty space anywhere, there would be about 10 to the power of 128 particles in it. This is quite a lot more than a Googol. But you simply cannot express the kind of Googolplex's numerical dimension with terms other than "10 to the power of something".