Yes. And a 10^17g black hole would have a radius of 1.485×10^-13 meters[1], 50 million times smaller than a red blood cell[2].

[1]: https://www.wolframalpha.com/input?i=schwarzschild+radius+ca...

[2]: https://www.wolframalpha.com/input?i=%28red+blood+cell+size%...