1608685892311 has 2 divisors, whose sum is σ = 1608685892312. Its totient is φ = 1608685892310.

The previous prime is 1608685892243. The next prime is 1608685892327. The reversal of 1608685892311 is 1132985868061.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1608685892311 - 2¹¹ = 1608685890263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1608685812311) 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, 804342946155 + 804342946156.

It is an arithmetic number, because the mean of its divisors is an integer number (804342946156).

Almost surely, 2^{1608685892311} is an apocalyptic number.

1608685892311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1608685892311 is an equidigital number, since it uses as much as digits as its factorization.

1608685892311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4976640, while the sum is 58.

The spelling of 1608685892311 in words is "one trillion, six hundred eight billion, six hundred eighty-five million, eight hundred ninety-two thousand, three hundred eleven".