13346669680 has 20 divisors (see below), whose sum is σ = 31031007192. Its totient is φ = 5338667840.

The previous prime is 13346669663. The next prime is 13346669729. The reversal of 13346669680 is 8696664331.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83416606 + ... + 83416765.

Almost surely, 2^13346669680 is an apocalyptic number.

13346669680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13346669680 is an abundant number, since it is smaller than the sum of its proper divisors (17684337512).

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

13346669680 is a wasteful number, since it uses less digits than its factorization.

13346669680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166833384 (or 166833378 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 52.

The spelling of 13346669680 in words is "thirteen billion, three hundred forty-six million, six hundred sixty-nine thousand, six hundred eighty".