16726225717 has 2 divisors, whose sum is σ = 16726225718. Its totient is φ = 16726225716.

The previous prime is 16726225697. The next prime is 16726225751. The reversal of 16726225717 is 71752262761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12096920196 + 4629305521 = 109986^2 + 68039^2 .

It is an emirp because it is prime and its reverse (71752262761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16726225717 - 2²⁷ = 16592007989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16726225777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8363112858 + 8363112859.

It is an arithmetic number, because the mean of its divisors is an integer number (8363112859).

Almost surely, 2^16726225717 is an apocalyptic number.

It is an amenable number.

16726225717 is a deficient number, since it is larger than the sum of its proper divisors (1).

16726225717 is an equidigital number, since it uses as much as digits as its factorization.

16726225717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 493920, while the sum is 46.

The spelling of 16726225717 in words is "sixteen billion, seven hundred twenty-six million, two hundred twenty-five thousand, seven hundred seventeen".