16441245217 has 2 divisors, whose sum is σ = 16441245218. Its totient is φ = 16441245216.

The previous prime is 16441245209. The next prime is 16441245257. The reversal of 16441245217 is 71254214461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12364550416 + 4076694801 = 111196^2 + 63849^2 .

It is a cyclic number.

It is not a de Polignac number, because 16441245217 - 2³ = 16441245209 is a prime.

It is a super-3 number, since 3×16441245217³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (16441245257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8220622608 + 8220622609.

It is an arithmetic number, because the mean of its divisors is an integer number (8220622609).

Almost surely, 2^16441245217 is an apocalyptic number.

It is an amenable number.

16441245217 is a deficient number, since it is larger than the sum of its proper divisors (1).

16441245217 is an equidigital number, since it uses as much as digits as its factorization.

16441245217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53760, while the sum is 37.

Adding to 16441245217 its reverse (71254214461), we get a palindrome (87695459678).

The spelling of 16441245217 in words is "sixteen billion, four hundred forty-one million, two hundred forty-five thousand, two hundred seventeen".