16706719483781 has 2 divisors, whose sum is σ = 16706719483782. Its totient is φ = 16706719483780.

The previous prime is 16706719483771. The next prime is 16706719483829. The reversal of 16706719483781 is 18738491760761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14278838200225 + 2427881283556 = 3778735^2 + 1558166^2 .

It is a cyclic number.

It is not a de Polignac number, because 16706719483781 - 2⁴² = 12308672972677 is a prime.

It is a super-2 number, since 2×16706719483781² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16706719483771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8353359741890 + 8353359741891.

It is an arithmetic number, because the mean of its divisors is an integer number (8353359741891).

Almost surely, 2^{16706719483781} is an apocalyptic number.

It is an amenable number.

16706719483781 is a deficient number, since it is larger than the sum of its proper divisors (1).

16706719483781 is an equidigital number, since it uses as much as digits as its factorization.

16706719483781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 85349376, while the sum is 68.

The spelling of 16706719483781 in words is "sixteen trillion, seven hundred six billion, seven hundred nineteen million, four hundred eighty-three thousand, seven hundred eighty-one".