12272288656 has 20 divisors (see below), whose sum is σ = 24112456704. Its totient is φ = 6049719200.

The previous prime is 12272288647. The next prime is 12272288657. The reversal of 12272288656 is 65688227221.

It is a happy number.

12272288656 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 (12272288657) 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 3 ways as a sum of consecutive naturals, for example, 5400400 + ... + 5402671.

Almost surely, 2^12272288656 is an apocalyptic number.

12272288656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12272288656 is a deficient number, since it is larger than the sum of its proper divisors (11840168048).

12272288656 is a wasteful number, since it uses less digits than its factorization.

12272288656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10803150 (or 10803144 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 49.

The spelling of 12272288656 in words is "twelve billion, two hundred seventy-two million, two hundred eighty-eight thousand, six hundred fifty-six".