16599965005979 has 2 divisors, whose sum is σ = 16599965005980. Its totient is φ = 16599965005978.

The previous prime is 16599965005969. The next prime is 16599965006021. The reversal of 16599965005979 is 97950056999561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16599965005979 - 2¹⁶ = 16599964940443 is a prime.

It is not a weakly prime, because it can be changed into another prime (16599965005969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8299982502989 + 8299982502990.

It is an arithmetic number, because the mean of its divisors is an integer number (8299982502990).

Almost surely, 2^{16599965005979} is an apocalyptic number.

16599965005979 is a deficient number, since it is larger than the sum of its proper divisors (1).

16599965005979 is an equidigital number, since it uses as much as digits as its factorization.

16599965005979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1860043500, while the sum is 80.

The spelling of 16599965005979 in words is "sixteen trillion, five hundred ninety-nine billion, nine hundred sixty-five million, five thousand, nine hundred seventy-nine".