12650140266 has 32 divisors (see below), whose sum is σ = 26831943360. Its totient is φ = 3962240256.

The previous prime is 12650140241. The next prime is 12650140267. The reversal of 12650140266 is 66204105621.

It is not an unprimeable number, because it can be changed into a prime (12650140267) 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, 37041 + ... + 163316.

It is an arithmetic number, because the mean of its divisors is an integer number (838498230).

Almost surely, 2^12650140266 is an apocalyptic number.

12650140266 is an abundant number, since it is smaller than the sum of its proper divisors (14181803094).

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

12650140266 is a wasteful number, since it uses less digits than its factorization.

12650140266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200998.

The product of its (nonzero) digits is 17280, while the sum is 33.

Adding to 12650140266 its reverse (66204105621), we get a palindrome (78854245887).

The spelling of 12650140266 in words is "twelve billion, six hundred fifty million, one hundred forty thousand, two hundred sixty-six".