12205563744 has 96 divisors (see below), whose sum is σ = 35092310400. Its totient is φ = 3683840000.

The previous prime is 12205563683. The next prime is 12205563751. The reversal of 12205563744 is 44736550221.

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, 242032 + ... + 288080.

It is an arithmetic number, because the mean of its divisors is an integer number (365544900).

Almost surely, 2^12205563744 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 12205563744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17546155200).

12205563744 is an abundant number, since it is smaller than the sum of its proper divisors (22886746656).

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

12205563744 is a wasteful number, since it uses less digits than its factorization.

12205563744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46324 (or 46316 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 39.

The spelling of 12205563744 in words is "twelve billion, two hundred five million, five hundred sixty-three thousand, seven hundred forty-four".