20146706996617 has 2 divisors, whose sum is σ = 20146706996618. Its totient is φ = 20146706996616.

The previous prime is 20146706996593. The next prime is 20146706996621. The reversal of 20146706996617 is 71669960764102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13938656369401 + 6208050627216 = 3733451^2 + 2491596^2 .

It is a cyclic number.

It is not a de Polignac number, because 20146706996617 - 2³¹ = 20144559512969 is a prime.

It is not a weakly prime, because it can be changed into another prime (20146706996417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10073353498308 + 10073353498309.

It is an arithmetic number, because the mean of its divisors is an integer number (10073353498309).

Almost surely, 2^{20146706996617} is an apocalyptic number.

It is an amenable number.

20146706996617 is a deficient number, since it is larger than the sum of its proper divisors (1).

20146706996617 is an equidigital number, since it uses as much as digits as its factorization.

20146706996617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41150592, while the sum is 64.

The spelling of 20146706996617 in words is "twenty trillion, one hundred forty-six billion, seven hundred six million, nine hundred ninety-six thousand, six hundred seventeen".