20089706688 has 168 divisors, whose sum is σ = 58384854528. Its totient is φ = 6603959808.

The previous prime is 20089706671. The next prime is 20089706731. The reversal of 20089706688 is 88660798002.

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, 18213145 + ... + 18214247.

It is an arithmetic number, because the mean of its divisors is an integer number (347528896).

Almost surely, 2^20089706688 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 20089706688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29192427264).

20089706688 is an abundant number, since it is smaller than the sum of its proper divisors (38295147840).

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

20089706688 is a wasteful number, since it uses less digits than its factorization.

20089706688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531 (or 1518 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 20089706688 in words is "twenty billion, eighty-nine million, seven hundred six thousand, six hundred eighty-eight".