12680220216785 has 32 divisors (see below), whose sum is σ = 16674047437824. Its totient is φ = 9180603640000.

The previous prime is 12680220216779. The next prime is 12680220216799. The reversal of 12680220216785 is 58761202208621.

It is not a de Polignac number, because 12680220216785 - 2⁸ = 12680220216529 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186629270 + ... + 186697200.

It is an arithmetic number, because the mean of its divisors is an integer number (521063982432).

Almost surely, 2^{12680220216785} is an apocalyptic number.

It is an amenable number.

12680220216785 is a deficient number, since it is larger than the sum of its proper divisors (3993827221039).

12680220216785 is a wasteful number, since it uses less digits than its factorization.

12680220216785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83125.

The product of its (nonzero) digits is 1290240, while the sum is 50.

The spelling of 12680220216785 in words is "twelve trillion, six hundred eighty billion, two hundred twenty million, two hundred sixteen thousand, seven hundred eighty-five".