1606716061 has 2 divisors, whose sum is σ = 1606716062. Its totient is φ = 1606716060.

The previous prime is 1606716047. The next prime is 1606716109. The reversal of 1606716061 is 1606176061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1523340900 + 83375161 = 39030^2 + 9131^2 .

It is a cyclic number.

It is not a de Polignac number, because 1606716061 - 2⁷ = 1606715933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1606716961) 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, 803358030 + 803358031.

It is an arithmetic number, because the mean of its divisors is an integer number (803358031).

Almost surely, 2^1606716061 is an apocalyptic number.

It is an amenable number.

1606716061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1606716061 is an equidigital number, since it uses as much as digits as its factorization.

1606716061 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 square root of 1606716061 is about 40083.8628502793. The cubic root of 1606716061 is about 1171.2413009912.

The spelling of 1606716061 in words is "one billion, six hundred six million, seven hundred sixteen thousand, sixty-one".