13666125330 has 512 divisors, whose sum is σ = 44808422400. Its totient is φ = 2919628800.

The previous prime is 13666125311. The next prime is 13666125331. The reversal of 13666125330 is 3352166631.

It is not an unprimeable number, because it can be changed into a prime (13666125331) by changing a digit.

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 255 ways as a sum of consecutive naturals, for example, 140887842 + ... + 140887938.

It is an arithmetic number, because the mean of its divisors is an integer number (87516450).

Almost surely, 2^13666125330 is an apocalyptic number.

13666125330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13666125330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22404211200).

13666125330 is an abundant number, since it is smaller than the sum of its proper divisors (31142297070).

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

13666125330 is a wasteful number, since it uses less digits than its factorization.

13666125330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

The spelling of 13666125330 in words is "thirteen billion, six hundred sixty-six million, one hundred twenty-five thousand, three hundred thirty".