20033868505 has 8 divisors (see below), whose sum is σ = 27475019712. Its totient is φ = 13737509808.

The previous prime is 20033868493. The next prime is 20033868523. The reversal of 20033868505 is 50586833002.

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 not a de Polignac number, because 20033868505 - 2⁵ = 20033868473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286198087 + ... + 286198156.

It is an arithmetic number, because the mean of its divisors is an integer number (3434377464).

Almost surely, 2^20033868505 is an apocalyptic number.

It is an amenable number.

20033868505 is a deficient number, since it is larger than the sum of its proper divisors (7441151207).

20033868505 is an equidigital number, since it uses as much as digits as its factorization.

20033868505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572396255.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 20033868505 in words is "twenty billion, thirty-three million, eight hundred sixty-eight thousand, five hundred five".