texture flags

uhm, i need a link or description for the texture flags above 512. the docs say:
1: Color (default)
2: Alpha
4: Masked
8: Mipmapped
16: Clamp U
32: Clamp V
64: Spherical environment map
128: Cubic environment map
256: Store texture in vram
512: Force the use of high color textures

but what the deal with higher flags such as 65536 etc?

65536 is for using the second set of UV coords. I don't know about any others. There's probably two more for the cube mode.

ok, thanks!