20323715056 has 20 divisors (see below), whose sum is σ = 39425069392. Its totient is φ = 10149503616.

The previous prime is 20323715023. The next prime is 20323715057. The reversal of 20323715056 is 65051732302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20323715057) 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 3 ways as a sum of consecutive naturals, for example, 758541 + ... + 784876.

Almost surely, 2^20323715056 is an apocalyptic number.

It is an amenable number.

20323715056 is a deficient number, since it is larger than the sum of its proper divisors (19101354336).

20323715056 is a wasteful number, since it uses less digits than its factorization.

20323715056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544248 (or 1544242 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 34.

The spelling of 20323715056 in words is "twenty billion, three hundred twenty-three million, seven hundred fifteen thousand, fifty-six".