CONFIG_ARC_NUMBER_OF_INTERRUPTS is not available for thedefaultarchitecture x86.
Result is shown for architecture arc
default or selected kernelversion does not have config value CONFIG_ARC_NUMBER_OF_INTERRUPTS.
Result is shown for kernelversion 6.4.14

Number of interrupts

configname: CONFIG_ARC_NUMBER_OF_INTERRUPTS

Linux Kernel Configuration
└─>ARC Architecture Configuration
└─>ARC CPU Configuration
└─>Number of interrupts
In linux kernel since version 4.1 (release Date: 2015-06-21)  
This defines the number of interrupts on the ARCv2HS core.
It affects the size of vector table.
The initial 8 IRQs are fixed (Timer, ICI etc) and although configurable
in hardware, it keep things simple for Linux to assume they are always
present.