20333045564 has 48 divisors (see below), whose sum is σ = 39943296288. Its totient is φ = 8994509568.

The previous prime is 20333045563. The next prime is 20333045597. The reversal of 20333045564 is 46554033302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20333045563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50042 + ... + 207774.

It is an arithmetic number, because the mean of its divisors is an integer number (832152006).

Almost surely, 2^20333045564 is an apocalyptic number.

It is an amenable number.

20333045564 is a deficient number, since it is larger than the sum of its proper divisors (19610250724).

20333045564 is a wasteful number, since it uses less digits than its factorization.

20333045564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157854 (or 157852 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 35.

Adding to 20333045564 its reverse (46554033302), we get a palindrome (66887078866).

The spelling of 20333045564 in words is "twenty billion, three hundred thirty-three million, forty-five thousand, five hundred sixty-four".