20333873663 has 8 divisors (see below), whose sum is σ = 21430164720. Its totient is φ = 19240191360.

The previous prime is 20333873657. The next prime is 20333873687. The reversal of 20333873663 is 36637833302.

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 20333873663 - 2¹⁶ = 20333808127 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 (20333873563) 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, 636170 + ... + 667367.

It is an arithmetic number, because the mean of its divisors is an integer number (2678770590).

Almost surely, 2^20333873663 is an apocalyptic number.

20333873663 is a deficient number, since it is larger than the sum of its proper divisors (1096291057).

20333873663 is a wasteful number, since it uses less digits than its factorization.

20333873663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304377.

The product of its (nonzero) digits is 979776, while the sum is 44.

The spelling of 20333873663 in words is "twenty billion, three hundred thirty-three million, eight hundred seventy-three thousand, six hundred sixty-three".