16506131417 has 2 divisors, whose sum is σ = 16506131418. Its totient is φ = 16506131416.

The previous prime is 16506131413. The next prime is 16506131431. The reversal of 16506131417 is 71413160561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16506082576 + 48841 = 128476^2 + 221^2 .

It is a cyclic number.

It is not a de Polignac number, because 16506131417 - 2² = 16506131413 is a prime.

It is not a weakly prime, because it can be changed into another prime (16506131413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8253065708 + 8253065709.

It is an arithmetic number, because the mean of its divisors is an integer number (8253065709).

Almost surely, 2^16506131417 is an apocalyptic number.

It is an amenable number.

16506131417 is a deficient number, since it is larger than the sum of its proper divisors (1).

16506131417 is an equidigital number, since it uses as much as digits as its factorization.

16506131417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 35.

Adding to 16506131417 its reverse (71413160561), we get a palindrome (87919291978).

The spelling of 16506131417 in words is "sixteen billion, five hundred six million, one hundred thirty-one thousand, four hundred seventeen".