12154868118 has 24 divisors (see below), whose sum is σ = 26977879656. Its totient is φ = 3952802400.

The previous prime is 12154868111. The next prime is 12154868191. The reversal of 12154868118 is 81186845121.

12154868118 is a `hidden beast` number, since 1 + 21 + 548 + 6 + 81 + 1 + 8 = 666.

12154868118 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12154868111) 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, 8234268 + ... + 8235743.

It is an arithmetic number, because the mean of its divisors is an integer number (1124078319).

Almost surely, 2^12154868118 is an apocalyptic number.

12154868118 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12154868118 is an abundant number, since it is smaller than the sum of its proper divisors (14823011538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12154868118 is a wasteful number, since it uses less digits than its factorization.

12154868118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16470060 (or 16470057 counting only the distinct ones).

The product of its digits is 122880, while the sum is 45.

The spelling of 12154868118 in words is "twelve billion, one hundred fifty-four million, eight hundred sixty-eight thousand, one hundred eighteen".