12186243055 has 32 divisors (see below), whose sum is σ = 16915536000. Its totient is φ = 8255250432.

The previous prime is 12186243037. The next prime is 12186243071. The reversal of 12186243055 is 55034268121.

It is a cyclic number.

It is not a de Polignac number, because 12186243055 - 2¹¹ = 12186241007 is a prime.

It is a congruent 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 31 ways as a sum of consecutive naturals, for example, 1342171 + ... + 1351219.

It is an arithmetic number, because the mean of its divisors is an integer number (528610500).

Almost surely, 2^12186243055 is an apocalyptic number.

12186243055 is a deficient number, since it is larger than the sum of its proper divisors (4729292945).

12186243055 is a wasteful number, since it uses less digits than its factorization.

12186243055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9523.

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 12186243055 in words is "twelve billion, one hundred eighty-six million, two hundred forty-three thousand, fifty-five".