36 billion solar masses does sound a "bit" excessive. Silly numbers like this only push us further to accept that there are 2 missing variables in the relativity equation;
#1 Black Hole size
#2 Black Hole rotation speed
A lot of equations in Einstein's relativity use the variable
r which represents a radius for a sphere. So, black holes are spheres. You'll see the radius is often raised to some power in Einstein's equations.
When it's 2, the equation is dealing with a circle on a plane. Combined with rotation of the grid, it typically creates magnitude, or a scalar value
When it's 3, the equation is dealing with a sphere on a 3D grid made of three intersecting planes. Combined with rotation of the grid, it creates vectors that have magnitude and direction.
When it's 4 or higher, it's dealing with a hypersphere and Hamiltonian mechanics
The case of 4 usually refers to spacetime, and can describe angular momentum, or rotaring vectors. Rotating vectors are spinner bundles (fibers) that appear as particles. String theory treats these as manifolds.
The case of 5 usually refers to the expansion or contraction of spacetime. Another way of saying this is it is gravity.
The cases 6 through 9 refer to different slices of the singularity outside of spacetime. These form the shared characteristics in families of particles (leptons, muons, etc)
The case of 10 refers to the entire singularity in a maximum saturated state.
The cases 11 and higher refer to new space created by a singularity. 11 dimensions is also what string theory has. It's the point at which a big bang happens.
Cases 12 and higher set the constants of the new universe and thereby its physical laws.
These are generalities in the timeline theory.