16706451217 has 2 divisors, whose sum is σ = 16706451218. Its totient is φ = 16706451216.

The previous prime is 16706451197. The next prime is 16706451227. The reversal of 16706451217 is 71215460761.

16706451217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15002330256 + 1704120961 = 122484^2 + 41281^2 .

It is a cyclic number.

It is not a de Polignac number, because 16706451217 - 2¹¹ = 16706449169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16706451217.

It is not a weakly prime, because it can be changed into another prime (16706451227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8353225608 + 8353225609.

It is an arithmetic number, because the mean of its divisors is an integer number (8353225609).

Almost surely, 2^16706451217 is an apocalyptic number.

It is an amenable number.

16706451217 is a deficient number, since it is larger than the sum of its proper divisors (1).

16706451217 is an equidigital number, since it uses as much as digits as its factorization.

16706451217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 40.

The spelling of 16706451217 in words is "sixteen billion, seven hundred six million, four hundred fifty-one thousand, two hundred seventeen".