16716272381969 has 2 divisors, whose sum is σ = 16716272381970. Its totient is φ = 16716272381968.

The previous prime is 16716272381933. The next prime is 16716272382109. The reversal of 16716272381969 is 96918327261761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15453822388225 + 1262449993744 = 3931135^2 + 1123588^2 .

It is an emirp because it is prime and its reverse (96918327261761) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16716272381969 is a prime.

It is a super-2 number, since 2×16716272381969² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16716272381899 and 16716272381908.

It is not a weakly prime, because it can be changed into another prime (16716272381929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8358136190984 + 8358136190985.

It is an arithmetic number, because the mean of its divisors is an integer number (8358136190985).

Almost surely, 2^{16716272381969} is an apocalyptic number.

It is an amenable number.

16716272381969 is a deficient number, since it is larger than the sum of its proper divisors (1).

16716272381969 is an equidigital number, since it uses as much as digits as its factorization.

16716272381969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82301184, while the sum is 68.

The spelling of 16716272381969 in words is "sixteen trillion, seven hundred sixteen billion, two hundred seventy-two million, three hundred eighty-one thousand, nine hundred sixty-nine".