1. Enter SQL Server Configuration Manager.
  2. Click to highlight SQL Server Services.
  3. Right-click SQL Server (PROFXENGAGEMENT) and click Properties.
  4. Click the Advanced tab.
  5. Browse to Stock Keeping Unit Name and Version

         


Stock Keeping Unit Name will be the edition of SQL. 


SQL Server 2016


Cumulative update nameBuild versionKnowledge Base numberRelease day
CU413.0.5233.0 (latest build)KB4464106November 13, 2018
CU313.0.5216.0KB4458871September 20, 2018
CU2 + Security Update13.0.5201.2KB4458621August 21, 2018
CU213.0.5153.0KB4340355July 16, 2018
CU113.0.5149.0KB4135048May 30, 2018
SP213.0.5026.0KB4052908April 24, 2018


Install SP2 first then follow with Cumulative Updates. 

               

For more information, see SQL Server 2016 builds, how to determine the version and edition of SQL Server and its components.