16422075217 has 2 divisors, whose sum is σ = 16422075218. Its totient is φ = 16422075216.

The previous prime is 16422075199. The next prime is 16422075247. The reversal of 16422075217 is 71257022461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13494074896 + 2928000321 = 116164^2 + 54111^2 .

It is a cyclic number.

It is not a de Polignac number, because 16422075217 - 2²⁷ = 16287857489 is a prime.

It is not a weakly prime, because it can be changed into another prime (16422075247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8211037608 + 8211037609.

It is an arithmetic number, because the mean of its divisors is an integer number (8211037609).

Almost surely, 2^16422075217 is an apocalyptic number.

It is an amenable number.

16422075217 is a deficient number, since it is larger than the sum of its proper divisors (1).

16422075217 is an equidigital number, since it uses as much as digits as its factorization.

16422075217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 37.

Adding to 16422075217 its reverse (71257022461), we get a palindrome (87679097678).

The spelling of 16422075217 in words is "sixteen billion, four hundred twenty-two million, seventy-five thousand, two hundred seventeen".