20650533223 has 8 divisors (see below), whose sum is σ = 21320539776. Its totient is φ = 19980768000.

The previous prime is 20650533149. The next prime is 20650533247. The reversal of 20650533223 is 32233505602.

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 20650533223 - 2¹⁷ = 20650402151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20650533523) 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, 122415 + ... + 237247.

It is an arithmetic number, because the mean of its divisors is an integer number (2665067472).

Almost surely, 2^20650533223 is an apocalyptic number.

20650533223 is a deficient number, since it is larger than the sum of its proper divisors (670006553).

20650533223 is a wasteful number, since it uses less digits than its factorization.

20650533223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120665.

The product of its (nonzero) digits is 32400, while the sum is 31.

The spelling of 20650533223 in words is "twenty billion, six hundred fifty million, five hundred thirty-three thousand, two hundred twenty-three".