12216440366304 has 96 divisors (see below), whose sum is σ = 32454645632640. Its totient is φ = 4023272827392.

The previous prime is 12216440366279. The next prime is 12216440366321. The reversal of 12216440366304 is 40366304461221.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent 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, 2237227 + ... + 5425685.

It is an arithmetic number, because the mean of its divisors is an integer number (338069225340).

Almost surely, 2^{12216440366304} 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 12216440366304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16227322816320).

12216440366304 is an abundant number, since it is smaller than the sum of its proper divisors (20238205266336).

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

12216440366304 is a wasteful number, since it uses less digits than its factorization.

12216440366304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3188952 (or 3188944 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 12216440366304 in words is "twelve trillion, two hundred sixteen billion, four hundred forty million, three hundred sixty-six thousand, three hundred four".