20616842316 has 192 divisors, whose sum is σ = 59601024000. Its totient is φ = 5528742912.

The previous prime is 20616842303. The next prime is 20616842317. The reversal of 20616842316 is 61324861602.

It is not an unprimeable number, because it can be changed into a prime (20616842317) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8835886 + ... + 8838218.

It is an arithmetic number, because the mean of its divisors is an integer number (310422000).

Almost surely, 2^20616842316 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20616842316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29800512000).

20616842316 is an abundant number, since it is smaller than the sum of its proper divisors (38984181684).

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

20616842316 is a wasteful number, since it uses less digits than its factorization.

20616842316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2493 (or 2477 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The spelling of 20616842316 in words is "twenty billion, six hundred sixteen million, eight hundred forty-two thousand, three hundred sixteen".