12564043106 has 8 divisors (see below), whose sum is σ = 18989928144. Its totient is φ = 6234067060.

The previous prime is 12564043091. The next prime is 12564043111. The reversal of 12564043106 is 60134046521.

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

It is a super-2 number, since 2×12564043106² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23976920 + ... + 23977443.

It is an arithmetic number, because the mean of its divisors is an integer number (2373741018).

Almost surely, 2^12564043106 is an apocalyptic number.

12564043106 is a deficient number, since it is larger than the sum of its proper divisors (6425885038).

12564043106 is a wasteful number, since it uses less digits than its factorization.

12564043106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47954496.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 12564043106 its reverse (60134046521), we get a palindrome (72698089627).

The spelling of 12564043106 in words is "twelve billion, five hundred sixty-four million, forty-three thousand, one hundred six".