c9g.16xlarge is an AWS EC2 instance with 64 vCPUs, 128 GiB memory (AWS Graviton5 Processor). In US East (N. Virginia) it costs $2.782 per hour on demand ($2,030.93 per month) for Linux. Spot capacity is about $0.7664 per hour. It is sold in 8 regions; the cheapest is Asia Pacific (Malaysia) at $2.716 per hour.
Prices by region
USD per hour, Linux. Reserved prices are no upfront, standard. Cheapest on-demand first.