1668168480075 has 12 divisors (see below), whose sum is σ = 2758038553848. Its totient is φ = 889689856000.

The previous prime is 1668168479983. The next prime is 1668168480079. The reversal of 1668168480075 is 5700848618661.

It is a happy number.

It is not a de Polignac number, because 1668168480075 - 2⁹ = 1668168479563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1668168480079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11121123126 + ... + 11121123275.

It is an arithmetic number, because the mean of its divisors is an integer number (229836546154).

Almost surely, 2^{1668168480075} is an apocalyptic number.

1668168480075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1668168480075 is a deficient number, since it is larger than the sum of its proper divisors (1089870073773).

1668168480075 is a wasteful number, since it uses less digits than its factorization.

1668168480075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22242246414 (or 22242246409 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 60.

The spelling of 1668168480075 in words is "one trillion, six hundred sixty-eight billion, one hundred sixty-eight million, four hundred eighty thousand, seventy-five".