Install OTB failed with python

from sys import argv import otbApplication

/--------------------Erros---------- C:\Users\dell\Anaconda2\python.exe C:/QGIS3.6/untitled1/12.py Traceback (most recent call last): File "C:/QGIS3.6/untitled1/12.py", line 7, in import otbApplication File "F:\software\OTB-6.6.1-Win64\lib\python3\otbApplication.py", line 17, in otbApplication = swig_import_helper() File "F:\software\OTB-6.6.1-Win64\lib\python3\otbApplication.py", line 16, in swig_import_helper return importlib.import_module('otbApplication') File "C:\Users\dell\Anaconda2\lib\importlib__init.py", line 37, in import_module import(name) ImportError: DLL load failed: //------------------------------------

Python2.7 with OTB-6.6.1-Win64 I am sure I set the environment path. Can any body help me ? Many Thanks