12186606667 has 12 divisors (see below), whose sum is σ = 12298467816. Its totient is φ = 12075591360.

The previous prime is 12186606661. The next prime is 12186606697. The reversal of 12186606667 is 76660668121.

12186606667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12186606667 - 2⁷ = 12186606539 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 12186606667.

It is not an unprimeable number, because it can be changed into a prime (12186606661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14735508 + ... + 14736334.

It is an arithmetic number, because the mean of its divisors is an integer number (1024872318).

Almost surely, 2^12186606667 is an apocalyptic number.

12186606667 is a deficient number, since it is larger than the sum of its proper divisors (111861149).

12186606667 is an frugal number, since it uses more digits than its factorization.

12186606667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566 (or 1337 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 12186606667 in words is "twelve billion, one hundred eighty-six million, six hundred six thousand, six hundred sixty-seven".