12432424565632 has 128 divisors (see below), whose sum is σ = 26478417162240. Its totient is φ = 5794102960128.

The previous prime is 12432424565609. The next prime is 12432424565633. The reversal of 12432424565632 is 23656542423421.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12432424565633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155546223 + ... + 155626129.

It is an arithmetic number, because the mean of its divisors is an integer number (206862634080).

Almost surely, 2^{12432424565632} 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 12432424565632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13239208581120).

12432424565632 is an abundant number, since it is smaller than the sum of its proper divisors (14045992596608).

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

12432424565632 is a wasteful number, since it uses less digits than its factorization.

12432424565632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80628 (or 80616 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 49.

The spelling of 12432424565632 in words is "twelve trillion, four hundred thirty-two billion, four hundred twenty-four million, five hundred sixty-five thousand, six hundred thirty-two".