12668243081700 has 36 divisors (see below), whose sum is σ = 36653449983920. Its totient is φ = 3378198155040.

The previous prime is 12668243081699. The next prime is 12668243081713. The reversal of 12668243081700 is 718034286621.

It is a self number, because there is not a number n which added to its sum of digits gives 12668243081700.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21113738170 + ... + 21113738769.

Almost surely, 2^{12668243081700} is an apocalyptic number.

12668243081700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12668243081700 is an abundant number, since it is smaller than the sum of its proper divisors (23985206902220).

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

12668243081700 is a wasteful number, since it uses less digits than its factorization.

12668243081700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42227476956 (or 42227476949 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 12668243081700 in words is "twelve trillion, six hundred sixty-eight billion, two hundred forty-three million, eighty-one thousand, seven hundred".