12066191999 has 8 divisors (see below), whose sum is σ = 12241540080. Its totient is φ = 11891727936.

The previous prime is 12066191959. The next prime is 12066192143. The reversal of 12066191999 is 99919166021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12066191999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12066191999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12066191959) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 193484 + ... + 248129.

It is an arithmetic number, because the mean of its divisors is an integer number (1530192510).

Almost surely, 2^12066191999 is an apocalyptic number.

12066191999 is a deficient number, since it is larger than the sum of its proper divisors (175348081).

12066191999 is an equidigital number, since it uses as much as digits as its factorization.

12066191999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442009.

The product of its (nonzero) digits is 472392, while the sum is 53.

The spelling of 12066191999 in words is "twelve billion, sixty-six million, one hundred ninety-one thousand, nine hundred ninety-nine".