The omega constant (0.56714) is a mathematical constant defined by
Ω • eΩ = 1
It is the value of W(1) where W is Lambert's W function. The name is derived from the alternate name for Lambert's W function, the omega function.
The value of Ω is approximately 0.5671432904097838729999686622... (sequence A030178 in OEIS). It has properties that