12166702105556 has 12 divisors (see below), whose sum is σ = 21336179061120. Its totient is φ = 6070650945240.

The previous prime is 12166702105529. The next prime is 12166702105583. The reversal of 12166702105556 is 65550120766121.

It is an interprime number because it is at equal distance from previous prime (12166702105529) and next prime (12166702105583).

It is a self number, because there is not a number n which added to its sum of digits gives 12166702105556.

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, 3175024730 + ... + 3175028561.

It is an arithmetic number, because the mean of its divisors is an integer number (1778014921760).

Almost surely, 2^{12166702105556} is an apocalyptic number.

It is an amenable number.

12166702105556 is a deficient number, since it is larger than the sum of its proper divisors (9169476955564).

12166702105556 is a wasteful number, since it uses less digits than its factorization.

12166702105556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6350053774 (or 6350053772 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 47.

The spelling of 12166702105556 in words is "twelve trillion, one hundred sixty-six billion, seven hundred two million, one hundred five thousand, five hundred fifty-six".