20665016333 has 8 divisors (see below), whose sum is σ = 23222226048. Its totient is φ = 18246034224.

The previous prime is 20665016279. The next prime is 20665016389. The reversal of 20665016333 is 33361056602.

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 20665016333 - 2¹⁰ = 20665015309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20665016293 and 20665016302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20665016033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34556585 + ... + 34557182.

It is an arithmetic number, because the mean of its divisors is an integer number (2902778256).

Almost surely, 2^20665016333 is an apocalyptic number.

20665016333 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20665016333 is a deficient number, since it is larger than the sum of its proper divisors (2557209715).

20665016333 is a wasteful number, since it uses less digits than its factorization.

20665016333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69113803.

The product of its (nonzero) digits is 58320, while the sum is 35.

The spelling of 20665016333 in words is "twenty billion, six hundred sixty-five million, sixteen thousand, three hundred thirty-three".