12243940567632 has 120 divisors (see below), whose sum is σ = 36308111906664. Its totient is φ = 3838437507072.

The previous prime is 12243940567619. The next prime is 12243940567637. The reversal of 12243940567632 is 23676504934221.

12243940567632 is a `hidden beast` number, since 1 + 2 + 2 + 4 + 3 + 9 + 40 + 567 + 6 + 32 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5417237630016 + 6826702937616 = 2327496^2 + 2612796^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12243940567637) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1539688 + ... + 5182520.

Almost surely, 2^{12243940567632} is an apocalyptic number.

12243940567632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12243940567632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18154055953332).

12243940567632 is an abundant number, since it is smaller than the sum of its proper divisors (24064171339032).

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

12243940567632 is a wasteful number, since it uses less digits than its factorization.

12243940567632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3644237 (or 3644228 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 54.

The spelling of 12243940567632 in words is "twelve trillion, two hundred forty-three billion, nine hundred forty million, five hundred sixty-seven thousand, six hundred thirty-two".