6643104366712 has 16 divisors (see below), whose sum is σ = 13588168023000. Its totient is φ = 3019592893920.

The previous prime is 6643104366707. The next prime is 6643104366737. The reversal of 6643104366712 is 2176634013466.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37744911087 + ... + 37744911262.

Almost surely, 2^{6643104366712} is an apocalyptic number.

It is an amenable number.

6643104366712 is an abundant number, since it is smaller than the sum of its proper divisors (6945063656288).

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

6643104366712 is a wasteful number, since it uses less digits than its factorization.

6643104366712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75489822366 (or 75489822362 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 49.

The spelling of 6643104366712 in words is "six trillion, six hundred forty-three billion, one hundred four million, three hundred sixty-six thousand, seven hundred twelve".