16692110509 has 2 divisors, whose sum is σ = 16692110510. Its totient is φ = 16692110508.

The previous prime is 16692110503. The next prime is 16692110543. The reversal of 16692110509 is 90501129661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10196556484 + 6495554025 = 100978^2 + 80595^2 .

It is a cyclic number.

It is not a de Polignac number, because 16692110509 - 2⁷ = 16692110381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16692110503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8346055254 + 8346055255.

It is an arithmetic number, because the mean of its divisors is an integer number (8346055255).

Almost surely, 2^16692110509 is an apocalyptic number.

It is an amenable number.

16692110509 is a deficient number, since it is larger than the sum of its proper divisors (1).

16692110509 is an equidigital number, since it uses as much as digits as its factorization.

16692110509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 40.

The spelling of 16692110509 in words is "sixteen billion, six hundred ninety-two million, one hundred ten thousand, five hundred nine".