1606340264489 has 2 divisors, whose sum is σ = 1606340264490. Its totient is φ = 1606340264488.

The previous prime is 1606340264359. The next prime is 1606340264527. The reversal of 1606340264489 is 9844620436061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1540974649600 + 65365614889 = 1241360^2 + 255667^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1606340264489 is a prime.

It is a super-2 number, since 2×1606340264489² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1606340264489.

It is not a weakly prime, because it can be changed into another prime (1606340264689) 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, 803170132244 + 803170132245.

It is an arithmetic number, because the mean of its divisors is an integer number (803170132245).

Almost surely, 2^{1606340264489} is an apocalyptic number.

It is an amenable number.

1606340264489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1606340264489 is an equidigital number, since it uses as much as digits as its factorization.

1606340264489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5971968, while the sum is 53.

The spelling of 1606340264489 in words is "one trillion, six hundred six billion, three hundred forty million, two hundred sixty-four thousand, four hundred eighty-nine".