13466668133440 has 28 divisors (see below), whose sum is σ = 32067503493516. Its totient is φ = 5386667253248.

The previous prime is 13466668133419. The next prime is 13466668133453. The reversal of 13466668133440 is 4433186666431.

It can be written as a sum of positive squares in 2 ways, for example, as 1775247123456 + 11691421009984 = 1332384^2 + 3419272^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21041668639 + ... + 21041669278.

Almost surely, 2^{13466668133440} is an apocalyptic number.

13466668133440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13466668133440 is an abundant number, since it is smaller than the sum of its proper divisors (18600835360076).

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

13466668133440 is an equidigital number, since it uses as much as digits as its factorization.

13466668133440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42083337934 (or 42083337924 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 55.

The spelling of 13466668133440 in words is "thirteen trillion, four hundred sixty-six billion, six hundred sixty-eight million, one hundred thirty-three thousand, four hundred forty".