1668183223 has 8 divisors (see below), whose sum is σ = 2006837120. Its totient is φ = 1354614840.

The previous prime is 1668183217. The next prime is 1668183233. The reversal of 1668183223 is 3223818661.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1668183223 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 (1668183203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6271233 + ... + 6271498.

It is an arithmetic number, because the mean of its divisors is an integer number (250854640).

Almost surely, 2^1668183223 is an apocalyptic number.

1668183223 is a deficient number, since it is larger than the sum of its proper divisors (338653897).

1668183223 is a wasteful number, since it uses less digits than its factorization.

1668183223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12542757.

The product of its digits is 82944, while the sum is 40.

The square root of 1668183223 is about 40843.3987689565. The cubic root of 1668183223 is about 1185.9906077476.

The spelling of 1668183223 in words is "one billion, six hundred sixty-eight million, one hundred eighty-three thousand, two hundred twenty-three".