13666867840180 has 12 divisors (see below), whose sum is σ = 28700422464420. Its totient is φ = 5466747136064.

The previous prime is 13666867840177. The next prime is 13666867840229. The reversal of 13666867840180 is 8104876866631.

It can be written as a sum of positive squares in 2 ways, for example, as 5604516472996 + 8062351367184 = 2367386^2 + 2839428^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341671695985 + ... + 341671696024.

It is an arithmetic number, because the mean of its divisors is an integer number (2391701872035).

Almost surely, 2^{13666867840180} is an apocalyptic number.

13666867840180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13666867840180 is an abundant number, since it is smaller than the sum of its proper divisors (15033554624240).

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

13666867840180 is a wasteful number, since it uses less digits than its factorization.

13666867840180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683343392018 (or 683343392016 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 64.

The spelling of 13666867840180 in words is "thirteen trillion, six hundred sixty-six billion, eight hundred sixty-seven million, eight hundred forty thousand, one hundred eighty".