There is no direct relationship between film and megapixel count. One is analog (film) the other digital. In terms of printing, the best you could expect out of a 16mm negative would be a decent 3 X 4" print, at the very most, and that would be out of a well-exposed, sharp negative. Even small digital files will print better.
16mm = 1,6 cm.
At 24 frames per second, it is 11 minutes, 3 seconds and 16 frames
how many pixels are in 700K
1.6cm
it is 150xa50 pixels.
2500mm
300
12 pixels tall 12 pixels wide.
786432 pixels
0.48
1.6 cm
0.3 megapixels