program main
  implicit none
  integer*8::i,j
  integer*8::N
  integer*8::a,b,aa,bb
  integer*8::aaa,bbb
  integer*8::total=0
  read *,N
  do i=1,INT(sqrt(real(N)))
     if(MOD(N,i).ne.0) cycle

     a = i
     b = N/i
     aa = a+roundup(a)*b
     bb = a*roundup(b)+b

!     print *, a,b,aa,bb
     if(aa.eq.bb) then
        aa = a*roundup(b)*b
        total = total + 1
     else
        total = total + 2
     end if
  end do
  print '(i0)', total
contains
  function roundup(a) result(aa)
    integer*8::a,aa,tmp
    aa = 1
    tmp = a
    do
       aa = aa*10
       tmp = tmp/10
       if(tmp.eq.0) exit
    end do
  end function roundup
end program main