12168111109594 has 32 divisors (see below), whose sum is σ = 20418773051520. Its totient is φ = 5391788371200.

The previous prime is 12168111109559. The next prime is 12168111109619. The reversal of 12168111109594 is 49590111186121.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43625499 + ... + 43903534.

It is an arithmetic number, because the mean of its divisors is an integer number (638086657860).

Almost surely, 2^{12168111109594} is an apocalyptic number.

12168111109594 is a deficient number, since it is larger than the sum of its proper divisors (8250661941926).

12168111109594 is a wasteful number, since it uses less digits than its factorization.

12168111109594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87529206.

The product of its (nonzero) digits is 155520, while the sum is 49.

The spelling of 12168111109594 in words is "twelve trillion, one hundred sixty-eight billion, one hundred eleven million, one hundred nine thousand, five hundred ninety-four".