There are 17 universities of technology in Germany with about 290,000 students enrolled. The four states of Bremen, Mecklenburg-Vorpommern, Saxony-Anhalt and Schleswig-Holstein are not operating a Technische Universität. Saxony and Lower Saxony have the highest counts of TUs, while in Saxony three out of four universities are universities of technology.

Answer this question, if possible (if impossible, reply "unanswerable"): How many institutes of technology are there in Germany?
17