16500080417 has 2 divisors, whose sum is σ = 16500080418. Its totient is φ = 16500080416.

The previous prime is 16500080407. The next prime is 16500080447. The reversal of 16500080417 is 71408000561.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11755763776 + 4744316641 = 108424^2 + 68879^2 .

It is a cyclic number.

It is not a de Polignac number, because 16500080417 - 2⁶ = 16500080353 is a prime.

It is not a weakly prime, because it can be changed into another prime (16500080407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8250040208 + 8250040209.

It is an arithmetic number, because the mean of its divisors is an integer number (8250040209).

Almost surely, 2^16500080417 is an apocalyptic number.

It is an amenable number.

16500080417 is a deficient number, since it is larger than the sum of its proper divisors (1).

16500080417 is an equidigital number, since it uses as much as digits as its factorization.

16500080417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 32.

Adding to 16500080417 its reverse (71408000561), we get a palindrome (87908080978).

The spelling of 16500080417 in words is "sixteen billion, five hundred million, eighty thousand, four hundred seventeen".