1668863445103 has 8 divisors (see below), whose sum is σ = 1670169051648. Its totient is φ = 1667558232984.

The previous prime is 1668863445091. The next prime is 1668863445149. The reversal of 1668863445103 is 3015443688661.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1668863445103 - 2⁵ = 1668863445071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1668863445503) 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, 8669700 + ... + 8860102.

It is an arithmetic number, because the mean of its divisors is an integer number (208771131456).

Almost surely, 2^{1668863445103} is an apocalyptic number.

1668863445103 is a deficient number, since it is larger than the sum of its proper divisors (1305606545).

1668863445103 is a wasteful number, since it uses less digits than its factorization.

1668863445103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197213.

The product of its (nonzero) digits is 9953280, while the sum is 55.

The spelling of 1668863445103 in words is "one trillion, six hundred sixty-eight billion, eight hundred sixty-three million, four hundred forty-five thousand, one hundred three".