12555996834 has 16 divisors (see below), whose sum is σ = 25231010400. Its totient is φ = 4165496160.

The previous prime is 12555996821. The next prime is 12555996839. The reversal of 12555996834 is 43869955521.

It is a happy number.

12555996834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12555996839) 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, 4957659 + ... + 4960190.

It is an arithmetic number, because the mean of its divisors is an integer number (1576938150).

Almost surely, 2^12555996834 is an apocalyptic number.

12555996834 is an abundant number, since it is smaller than the sum of its proper divisors (12675013566).

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

12555996834 is a wasteful number, since it uses less digits than its factorization.

12555996834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9918065.

The product of its digits is 11664000, while the sum is 57.

The spelling of 12555996834 in words is "twelve billion, five hundred fifty-five million, nine hundred ninety-six thousand, eight hundred thirty-four".