16825174217 has 2 divisors, whose sum is σ = 16825174218. Its totient is φ = 16825174216.

The previous prime is 16825174207. The next prime is 16825174237. The reversal of 16825174217 is 71247152861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9104213056 + 7720961161 = 95416^2 + 87869^2 .

It is a cyclic number.

It is not a de Polignac number, because 16825174217 - 2²² = 16820979913 is a prime.

It is not a weakly prime, because it can be changed into another prime (16825174207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8412587108 + 8412587109.

It is an arithmetic number, because the mean of its divisors is an integer number (8412587109).

Almost surely, 2^16825174217 is an apocalyptic number.

It is an amenable number.

16825174217 is a deficient number, since it is larger than the sum of its proper divisors (1).

16825174217 is an equidigital number, since it uses as much as digits as its factorization.

16825174217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 188160, while the sum is 44.

The spelling of 16825174217 in words is "sixteen billion, eight hundred twenty-five million, one hundred seventy-four thousand, two hundred seventeen".