12544440206 has 8 divisors (see below), whose sum is σ = 18829850760. Its totient is φ = 6267823288.

The previous prime is 12544440197. The next prime is 12544440239. The reversal of 12544440206 is 60204444521.

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

It is a congruent 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, 2194841 + ... + 2200548.

It is an arithmetic number, because the mean of its divisors is an integer number (2353731345).

Almost surely, 2^12544440206 is an apocalyptic number.

12544440206 is a deficient number, since it is larger than the sum of its proper divisors (6285410554).

12544440206 is a wasteful number, since it uses less digits than its factorization.

12544440206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4396818.

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 12544440206 its reverse (60204444521), we get a palindrome (72748884727).

The spelling of 12544440206 in words is "twelve billion, five hundred forty-four million, four hundred forty thousand, two hundred six".