12668414220 has 144 divisors (see below), whose sum is σ = 47909691648. Its totient is φ = 2632394880.

The previous prime is 12668414197. The next prime is 12668414243. The reversal of 12668414220 is 2241486621.

12668414220 is a `hidden beast` number, since 12 + 6 + 6 + 8 + 414 + 220 = 666.

It is an interprime number because it is at equal distance from previous prime (12668414197) and next prime (12668414243).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 443154 + ... + 470873.

It is an arithmetic number, because the mean of its divisors is an integer number (332706192).

Almost surely, 2^12668414220 is an apocalyptic number.

12668414220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12668414220 is an abundant number, since it is smaller than the sum of its proper divisors (35241277428).

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

12668414220 is a wasteful number, since it uses less digits than its factorization.

12668414220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914060 (or 914055 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The spelling of 12668414220 in words is "twelve billion, six hundred sixty-eight million, four hundred fourteen thousand, two hundred twenty".