1668441283 has 8 divisors (see below), whose sum is σ = 1704865536. Its totient is φ = 1632376200.

The previous prime is 1668441241. The next prime is 1668441301. The reversal of 1668441283 is 3821448661.

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 1668441283 - 2⁹ = 1668440771 is a prime.

It is a super-3 number, since 3×1668441283³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1668445283) 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, 80391 + ... + 98992.

It is an arithmetic number, because the mean of its divisors is an integer number (213108192).

Almost surely, 2^1668441283 is an apocalyptic number.

1668441283 is a deficient number, since it is larger than the sum of its proper divisors (36424253).

1668441283 is a wasteful number, since it uses less digits than its factorization.

1668441283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179585.

The product of its digits is 221184, while the sum is 43.

The square root of 1668441283 is about 40846.5577864280. The cubic root of 1668441283 is about 1186.0517602940.

The spelling of 1668441283 in words is "one billion, six hundred sixty-eight million, four hundred forty-one thousand, two hundred eighty-three".