11566168320 has 144 divisors (see below), whose sum is σ = 42216612480. Its totient is φ = 2643689472.

The previous prime is 11566168267. The next prime is 11566168343. The reversal of 11566168320 is 2386166511.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188265 + ... + 242024.

It is an arithmetic number, because the mean of its divisors is an integer number (293170920).

Almost surely, 2^11566168320 is an apocalyptic number.

11566168320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11566168320 is an abundant number, since it is smaller than the sum of its proper divisors (30650444160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11566168320 is an equidigital number, since it uses as much as digits as its factorization.

11566168320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430320 (or 430306 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 11566168320 in words is "eleven billion, five hundred sixty-six million, one hundred sixty-eight thousand, three hundred twenty".