16985814955141 has 2 divisors, whose sum is σ = 16985814955142. Its totient is φ = 16985814955140.

The previous prime is 16985814955091. The next prime is 16985814955211. The reversal of 16985814955141 is 14155941858961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16075849680900 + 909965274241 = 4009470^2 + 953921^2 .

It is a cyclic number.

It is not a de Polignac number, because 16985814955141 - 2³³ = 16977225020549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16985814955841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8492907477570 + 8492907477571.

It is an arithmetic number, because the mean of its divisors is an integer number (8492907477571).

Almost surely, 2^{16985814955141} is an apocalyptic number.

It is an amenable number.

16985814955141 is a deficient number, since it is larger than the sum of its proper divisors (1).

16985814955141 is an equidigital number, since it uses as much as digits as its factorization.

16985814955141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208000, while the sum is 67.

The spelling of 16985814955141 in words is "sixteen trillion, nine hundred eighty-five billion, eight hundred fourteen million, nine hundred fifty-five thousand, one hundred forty-one".