99660109306039 has 2 divisors, whose sum is σ = 99660109306040. Its totient is φ = 99660109306038.

The previous prime is 99660109306013. The next prime is 99660109306139. The reversal of 99660109306039 is 93060390106699.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99660109306039 - 2¹⁵ = 99660109273271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99660109306139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49830054653019 + 49830054653020.

It is an arithmetic number, because the mean of its divisors is an integer number (49830054653020).

Almost surely, 2^{99660109306039} is an apocalyptic number.

99660109306039 is a deficient number, since it is larger than the sum of its proper divisors (1).

99660109306039 is an equidigital number, since it uses as much as digits as its factorization.

99660109306039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12754584, while the sum is 61.

The spelling of 99660109306039 in words is "ninety-nine trillion, six hundred sixty billion, one hundred nine million, three hundred six thousand, thirty-nine".