1608128611 has 2 divisors, whose sum is σ = 1608128612. Its totient is φ = 1608128610.

The previous prime is 1608128581. The next prime is 1608128657. The reversal of 1608128611 is 1168218061.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1168218061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1608128611 - 2⁵ = 1608128579 is a prime.

It is not a weakly prime, because it can be changed into another prime (1608128681) 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, 804064305 + 804064306.

It is an arithmetic number, because the mean of its divisors is an integer number (804064306).

Almost surely, 2^1608128611 is an apocalyptic number.

1608128611 is a deficient number, since it is larger than the sum of its proper divisors (1).

1608128611 is an equidigital number, since it uses as much as digits as its factorization.

1608128611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 34.

The square root of 1608128611 is about 40101.4789128780. The cubic root of 1608128611 is about 1171.5844340732.

The spelling of 1608128611 in words is "one billion, six hundred eight million, one hundred twenty-eight thousand, six hundred eleven".