16684350085 has 24 divisors (see below), whose sum is σ = 21894546024. Its totient is φ = 12198700800.

The previous prime is 16684350083. The next prime is 16684350101. The reversal of 16684350085 is 58005348661.

It can be written as a sum of positive squares in 12 ways, for example, as 10617653764 + 6066696321 = 103042^2 + 77889^2 .

It is not a de Polignac number, because 16684350085 - 2¹ = 16684350083 is a prime.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16684350083) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12402 + ... + 183091.

It is an arithmetic number, because the mean of its divisors is an integer number (912272751).

Almost surely, 2^16684350085 is an apocalyptic number.

It is an amenable number.

16684350085 is a deficient number, since it is larger than the sum of its proper divisors (5210195939).

16684350085 is a wasteful number, since it uses less digits than its factorization.

16684350085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195625 (or 195612 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 16684350085 in words is "sixteen billion, six hundred eighty-four million, three hundred fifty thousand, eighty-five".