12161668458 has 16 divisors (see below), whose sum is σ = 24616390176. Its totient is φ = 4005047280.

The previous prime is 12161668427. The next prime is 12161668489. The reversal of 12161668458 is 85486616121.

12161668458 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12161668427) and next prime (12161668489).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12210013 + ... + 12211008.

It is an arithmetic number, because the mean of its divisors is an integer number (1538524386).

Almost surely, 2^12161668458 is an apocalyptic number.

12161668458 is an abundant number, since it is smaller than the sum of its proper divisors (12454721718).

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

12161668458 is a wasteful number, since it uses less digits than its factorization.

12161668458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24421109.

The product of its digits is 552960, while the sum is 48.

The spelling of 12161668458 in words is "twelve billion, one hundred sixty-one million, six hundred sixty-eight thousand, four hundred fifty-eight".