You can use the Info panel’s fly-out menu to choose to display the document Layer Count in the Info palette.
You can also enable Always Show Composite Color Values to simplify the readout of the Info panel by only displaying the composite or “all layers” values.
In Photoshop’s default state (the screenshot on the left), the Info panel displays two sets of values for tracking changes made to an image. Enabling “Always Show Composite Color Values” simplifies the panel and only displays the composite values (the screenshot on the right).