12656222066260 has 24 divisors (see below), whose sum is σ = 27733634441856. Its totient is φ = 4842380616480.

The previous prime is 12656222066251. The next prime is 12656222066281. The reversal of 12656222066260 is 6266022265621.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 12656222066260.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13756762656 + ... + 13756763575.

It is an arithmetic number, because the mean of its divisors is an integer number (1155568101744).

Almost surely, 2^{12656222066260} is an apocalyptic number.

12656222066260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12656222066260 is an abundant number, since it is smaller than the sum of its proper divisors (15077412375596).

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

12656222066260 is a wasteful number, since it uses less digits than its factorization.

12656222066260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27513526263 (or 27513526261 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 46.

The spelling of 12656222066260 in words is "twelve trillion, six hundred fifty-six billion, two hundred twenty-two million, sixty-six thousand, two hundred sixty".