16701660061 has 2 divisors, whose sum is σ = 16701660062. Its totient is φ = 16701660060.

The previous prime is 16701660049. The next prime is 16701660089. The reversal of 16701660061 is 16006610761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8494387225 + 8207272836 = 92165^2 + 90594^2 .

It is a cyclic number.

It is not a de Polignac number, because 16701660061 - 2²¹ = 16699562909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16701659999 and 16701660026.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16701660361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8350830030 + 8350830031.

It is an arithmetic number, because the mean of its divisors is an integer number (8350830031).

Almost surely, 2^16701660061 is an apocalyptic number.

It is an amenable number.

16701660061 is a deficient number, since it is larger than the sum of its proper divisors (1).

16701660061 is an equidigital number, since it uses as much as digits as its factorization.

16701660061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The spelling of 16701660061 in words is "sixteen billion, seven hundred one million, six hundred sixty thousand, sixty-one".