99660109306080 has 384 divisors, whose sum is σ = 324765724631040. Its totient is φ = 25662485422080.

The previous prime is 99660109306039. The next prime is 99660109306139. The reversal of 99660109306080 is 8060390106699.

It is a Cunningham number, because it is equal to 9982991²-1.

It is a self number, because there is not a number n which added to its sum of digits gives 99660109306080.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14854685766 + ... + 14854692474.

It is an arithmetic number, because the mean of its divisors is an integer number (845744074560).

Almost surely, 2^{99660109306080} 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 99660109306080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162382862315520).

99660109306080 is an abundant number, since it is smaller than the sum of its proper divisors (225105615324960).

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

99660109306080 is a wasteful number, since it uses less digits than its factorization.

99660109306080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8794 (or 8786 counting only the distinct ones).

The product of its (nonzero) digits is 3779136, while the sum is 57.

The spelling of 99660109306080 in words is "ninety-nine trillion, six hundred sixty billion, one hundred nine million, three hundred six thousand, eighty".