12243556641 has 8 divisors (see below), whose sum is σ = 16477310304. Its totient is φ = 8086087040.

The previous prime is 12243556639. The next prime is 12243556649. The reversal of 12243556641 is 14665534221.

12243556641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12243556641 - 2¹ = 12243556639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12243556641.

It is not an unprimeable number, because it can be changed into a prime (12243556649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19070640 + ... + 19071281.

It is an arithmetic number, because the mean of its divisors is an integer number (2059663788).

Almost surely, 2^12243556641 is an apocalyptic number.

It is an amenable number.

12243556641 is a deficient number, since it is larger than the sum of its proper divisors (4233753663).

12243556641 is a wasteful number, since it uses less digits than its factorization.

12243556641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38142031.

The product of its digits is 172800, while the sum is 39.

The spelling of 12243556641 in words is "twelve billion, two hundred forty-three million, five hundred fifty-six thousand, six hundred forty-one".