20266353762233 has 4 divisors (see below), whose sum is σ = 20425931351040. Its totient is φ = 20106776173428.

The previous prime is 20266353762211. The next prime is 20266353762253. The reversal of 20266353762233 is 33226735366202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20266353762233 - 2⁶ = 20266353762169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20266353762253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79788794213 + ... + 79788794466.

It is an arithmetic number, because the mean of its divisors is an integer number (5106482837760).

Almost surely, 2^{20266353762233} is an apocalyptic number.

It is an amenable number.

20266353762233 is a deficient number, since it is larger than the sum of its proper divisors (159577588807).

20266353762233 is a wasteful number, since it uses less digits than its factorization.

20266353762233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159577588806.

The product of its (nonzero) digits is 9797760, while the sum is 50.

The spelling of 20266353762233 in words is "twenty trillion, two hundred sixty-six billion, three hundred fifty-three million, seven hundred sixty-two thousand, two hundred thirty-three".