12672337543656 has 96 divisors (see below), whose sum is σ = 37849259809440. Its totient is φ = 3522811969152.

The previous prime is 12672337543639. The next prime is 12672337543669. The reversal of 12672337543656 is 65634573327621.

It is a self number, because there is not a number n which added to its sum of digits gives 12672337543656.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145575370 + ... + 145662393.

It is an arithmetic number, because the mean of its divisors is an integer number (394263123015).

Almost surely, 2^{12672337543656} is an apocalyptic number.

It is an amenable number.

12672337543656 is an abundant number, since it is smaller than the sum of its proper divisors (25176922265784).

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

12672337543656 is a wasteful number, since it uses less digits than its factorization.

12672337543656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291237823 (or 291237812 counting only the distinct ones).

The product of its digits is 114307200, while the sum is 60.

The spelling of 12672337543656 in words is "twelve trillion, six hundred seventy-two billion, three hundred thirty-seven million, five hundred forty-three thousand, six hundred fifty-six".