A genocide every 1.5 hours over the span of 24 hours per day is 36 genocides, that being that the entire world is destroyed alongside that (which spinel does), over that on the span of an entire year is 13,140 genocides, and assuming there are 8 billion people in the world (based on when Undertale was created based on a world population check), we would then take 13,140 genocides in an entire year multiplied by 6,000 years, which would then be 78,840,000 genocides in her entire lifetime, and THEN include the 8 billion people on the multiply, which would then be the amount of 6.3072e17 SOULs.
6.3062 e 17 is equivalent to 630,720,000,000,000,000 SOULs
A formula was used by dividing by 7 as we can compare this power to Asriel.
630,720,000,000,000,000 divided by 7 is equal to 90,102,900,000,000,000.