12180168386 has 32 divisors (see below), whose sum is σ = 19708815360. Its totient is φ = 5628140496.

The previous prime is 12180168383. The next prime is 12180168389. The reversal of 12180168386 is 68386108121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12180168383) and next prime (12180168389).

It is a super-2 number, since 2×12180168386² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12180168383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239015 + ... + 285461.

It is an arithmetic number, because the mean of its divisors is an integer number (615900480).

Almost surely, 2^12180168386 is an apocalyptic number.

12180168386 is a deficient number, since it is larger than the sum of its proper divisors (7528646974).

12180168386 is a wasteful number, since it uses less digits than its factorization.

12180168386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46638.

The product of its (nonzero) digits is 110592, while the sum is 44.

The spelling of 12180168386 in words is "twelve billion, one hundred eighty million, one hundred sixty-eight thousand, three hundred eighty-six".