20668273483 has 8 divisors (see below), whose sum is σ = 24281608176. Its totient is φ = 17344005600.

The previous prime is 20668273477. The next prime is 20668273541. The reversal of 20668273483 is 38437286602.

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 a de Polignac number, because none of the positive numbers 2^k-20668273483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20668273183) 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, 72266548 + ... + 72266833.

It is an arithmetic number, because the mean of its divisors is an integer number (3035201022).

Almost surely, 2^20668273483 is an apocalyptic number.

20668273483 is a deficient number, since it is larger than the sum of its proper divisors (3613334693).

20668273483 is a wasteful number, since it uses less digits than its factorization.

20668273483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144533405.

The product of its (nonzero) digits is 2322432, while the sum is 49.

The spelling of 20668273483 in words is "twenty billion, six hundred sixty-eight million, two hundred seventy-three thousand, four hundred eighty-three".