20584650848 has 12 divisors (see below), whose sum is σ = 40526031420. Its totient is φ = 10292325408.

The previous prime is 20584650847. The next prime is 20584650913. The reversal of 20584650848 is 84805648502.

It is a junction number, because it is equal to n+sod(n) for n = 20584650796 and 20584650805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20584650847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 321635138 + ... + 321635201.

It is an arithmetic number, because the mean of its divisors is an integer number (3377169285).

Almost surely, 2^20584650848 is an apocalyptic number.

It is an amenable number.

20584650848 is a deficient number, since it is larger than the sum of its proper divisors (19941380572).

20584650848 is an equidigital number, since it uses as much as digits as its factorization.

20584650848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643270349 (or 643270341 counting only the distinct ones).

The product of its (nonzero) digits is 2457600, while the sum is 50.

The spelling of 20584650848 in words is "twenty billion, five hundred eighty-four million, six hundred fifty thousand, eight hundred forty-eight".