16668335000173 has 2 divisors, whose sum is σ = 16668335000174. Its totient is φ = 16668335000172.

The previous prime is 16668335000171. The next prime is 16668335000231. The reversal of 16668335000173 is 37100053386661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9047985792169 + 7620349208004 = 3007987^2 + 2760498^2 .

It is a cyclic number.

It is not a de Polignac number, because 16668335000173 - 2¹ = 16668335000171 is a prime.

Together with 16668335000171, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16668335000171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8334167500086 + 8334167500087.

It is an arithmetic number, because the mean of its divisors is an integer number (8334167500087).

Almost surely, 2^{16668335000173} is an apocalyptic number.

It is an amenable number.

16668335000173 is a deficient number, since it is larger than the sum of its proper divisors (1).

16668335000173 is an equidigital number, since it uses as much as digits as its factorization.

16668335000173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1632960, while the sum is 49.

The spelling of 16668335000173 in words is "sixteen trillion, six hundred sixty-eight billion, three hundred thirty-five million, one hundred seventy-three", and thus it is an aban number.