12656000242 has 16 divisors (see below), whose sum is σ = 19273030560. Its totient is φ = 6231712608.

The previous prime is 12656000167. The next prime is 12656000243. The reversal of 12656000242 is 24200065621.

It is a self number, because there is not a number n which added to its sum of digits gives 12656000242.

It is not an unprimeable number, because it can be changed into a prime (12656000243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 516934 + ... + 540862.

It is an arithmetic number, because the mean of its divisors is an integer number (1204564410).

Almost surely, 2^12656000242 is an apocalyptic number.

12656000242 is a deficient number, since it is larger than the sum of its proper divisors (6617030318).

12656000242 is a wasteful number, since it uses less digits than its factorization.

12656000242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27945.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 12656000242 its reverse (24200065621), we get a palindrome (36856065863).

The spelling of 12656000242 in words is "twelve billion, six hundred fifty-six million, two hundred forty-two", and thus it is an aban number.