1668855108183 has 16 divisors (see below), whose sum is σ = 2226488052096. Its totient is φ = 1111896288800.

The previous prime is 1668855108103. The next prime is 1668855108253. The reversal of 1668855108183 is 3818015588661.

It is a cyclic number.

It is not a de Polignac number, because 1668855108183 - 2⁹ = 1668855107671 is a prime.

It is a super-2 number, since 2×1668855108183² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1668855108103) 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 in 15 ways as a sum of consecutive naturals, for example, 50657785 + ... + 50690717.

It is an arithmetic number, because the mean of its divisors is an integer number (139155503256).

Almost surely, 2^{1668855108183} is an apocalyptic number.

1668855108183 is a deficient number, since it is larger than the sum of its proper divisors (557632943913).

1668855108183 is a wasteful number, since it uses less digits than its factorization.

1668855108183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42654.

The product of its (nonzero) digits is 11059200, while the sum is 60.

The spelling of 1668855108183 in words is "one trillion, six hundred sixty-eight billion, eight hundred fifty-five million, one hundred eight thousand, one hundred eighty-three".