12756050156656 has 80 divisors (see below), whose sum is σ = 26441377357824. Its totient is φ = 5940371008512.

The previous prime is 12756050156653. The next prime is 12756050156683. The reversal of 12756050156656 is 65665105065721.

It is a super-2 number, since 2×12756050156656² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12756050156597 and 12756050156606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12756050156653) 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, 39706785 + ... + 40026751.

Almost surely, 2^{12756050156656} is an apocalyptic number.

12756050156656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12756050156656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13220688678912).

12756050156656 is an abundant number, since it is smaller than the sum of its proper divisors (13685327201168).

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

12756050156656 is a wasteful number, since it uses less digits than its factorization.

12756050156656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321518 (or 321512 counting only the distinct ones).

The product of its (nonzero) digits is 11340000, while the sum is 55.

The spelling of 12756050156656 in words is "twelve trillion, seven hundred fifty-six billion, fifty million, one hundred fifty-six thousand, six hundred fifty-six".