16720162107097 has 2 divisors, whose sum is σ = 16720162107098. Its totient is φ = 16720162107096.

The previous prime is 16720162107071. The next prime is 16720162107127. The reversal of 16720162107097 is 79070126102761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14186401722256 + 2533760384841 = 3766484^2 + 1591779^2 .

It is a cyclic number.

It is not a de Polignac number, because 16720162107097 - 2³¹ = 16718014623449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16720162107097.

It is not a weakly prime, because it can be changed into another prime (16720162107017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8360081053548 + 8360081053549.

It is an arithmetic number, because the mean of its divisors is an integer number (8360081053549).

Almost surely, 2^{16720162107097} is an apocalyptic number.

It is an amenable number.

16720162107097 is a deficient number, since it is larger than the sum of its proper divisors (1).

16720162107097 is an equidigital number, since it uses as much as digits as its factorization.

16720162107097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 444528, while the sum is 49.

The spelling of 16720162107097 in words is "sixteen trillion, seven hundred twenty billion, one hundred sixty-two million, one hundred seven thousand, ninety-seven".