20992393296 has 320 divisors, whose sum is σ = 72521072640. Its totient is φ = 5684152320.

The previous prime is 20992393291. The next prime is 20992393361. The reversal of 20992393296 is 69239329902.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20992393291) 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, 7858041 + ... + 7860711.

It is an arithmetic number, because the mean of its divisors is an integer number (226628352).

Almost surely, 2^20992393296 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 20992393296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36260536320).

20992393296 is an abundant number, since it is smaller than the sum of its proper divisors (51528679344).

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

20992393296 is a wasteful number, since it uses less digits than its factorization.

20992393296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2831 (or 2819 counting only the distinct ones).

The product of its (nonzero) digits is 2834352, while the sum is 54.

The spelling of 20992393296 in words is "twenty billion, nine hundred ninety-two million, three hundred ninety-three thousand, two hundred ninety-six".