20008608768 has 352 divisors, whose sum is σ = 63964656000. Its totient is φ = 6157762560.

The previous prime is 20008608709. The next prime is 20008608773. The reversal of 20008608768 is 86780680002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21537328 + ... + 21538256.

Almost surely, 2^20008608768 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 20008608768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31982328000).

20008608768 is an abundant number, since it is smaller than the sum of its proper divisors (43956047232).

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

20008608768 is a wasteful number, since it uses less digits than its factorization.

20008608768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018 (or 994 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 20008608768 in words is "twenty billion, eight million, six hundred eight thousand, seven hundred sixty-eight".