12169439920128 has 240 divisors, whose sum is σ = 33373101422304. Its totient is φ = 3941974671360.

The previous prime is 12169439920061. The next prime is 12169439920213. The reversal of 12169439920128 is 82102993496121.

It is a happy number.

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, 517902876 + ... + 517926372.

Almost surely, 2^{12169439920128} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12169439920128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16686550711152).

12169439920128 is an abundant number, since it is smaller than the sum of its proper divisors (21203661502176).

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

12169439920128 is an equidigital number, since it uses as much as digits as its factorization.

12169439920128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23826 (or 23800 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 57.

The spelling of 12169439920128 in words is "twelve trillion, one hundred sixty-nine billion, four hundred thirty-nine million, nine hundred twenty thousand, one hundred twenty-eight".