20620327320 has 96 divisors (see below), whose sum is σ = 67230540000. Its totient is φ = 5481156096.

The previous prime is 20620327313. The next prime is 20620327337. The reversal of 20620327320 is 2372302602.

20620327320 is a `hidden beast` number, since 2 + 0 + 620 + 3 + 2 + 7 + 32 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21181 + ... + 204179.

It is an arithmetic number, because the mean of its divisors is an integer number (700318125).

Almost surely, 2^20620327320 is an apocalyptic number.

20620327320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20620327320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33615270000).

20620327320 is an abundant number, since it is smaller than the sum of its proper divisors (46610212680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20620327320 is a wasteful number, since it uses less digits than its factorization.

20620327320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183329 (or 183322 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

Adding to 20620327320 its reverse (2372302602), we get a palindrome (22992629922).

The spelling of 20620327320 in words is "twenty billion, six hundred twenty million, three hundred twenty-seven thousand, three hundred twenty".