1608088181666 has 16 divisors (see below), whose sum is σ = 2425041720000. Its totient is φ = 799743569328.

The previous prime is 1608088181663. The next prime is 1608088181681. The reversal of 1608088181666 is 6661818808061.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1608088181663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 571760 + ... + 1882308.

It is an arithmetic number, because the mean of its divisors is an integer number (151565107500).

Almost surely, 2^{1608088181666} is an apocalyptic number.

1608088181666 is a deficient number, since it is larger than the sum of its proper divisors (816953538334).

1608088181666 is a wasteful number, since it uses less digits than its factorization.

1608088181666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313833.

The product of its (nonzero) digits is 5308416, while the sum is 59.

The spelling of 1608088181666 in words is "one trillion, six hundred eight billion, eighty-eight million, one hundred eighty-one thousand, six hundred sixty-six".