13668655488 has 128 divisors (see below), whose sum is σ = 36956215680. Its totient is φ = 4475326464.

The previous prime is 13668655471. The next prime is 13668655513. The reversal of 13668655488 is 88455686631.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7932195 + ... + 7933917.

It is an arithmetic number, because the mean of its divisors is an integer number (288720435).

Almost surely, 2^13668655488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13668655488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18478107840).

13668655488 is an abundant number, since it is smaller than the sum of its proper divisors (23287560192).

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

13668655488 is a wasteful number, since it uses less digits than its factorization.

13668655488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2096 (or 2084 counting only the distinct ones).

The product of its digits is 33177600, while the sum is 60.

The spelling of 13668655488 in words is "thirteen billion, six hundred sixty-eight million, six hundred fifty-five thousand, four hundred eighty-eight".