19559588808 has 64 divisors (see below), whose sum is σ = 50054400000. Its totient is φ = 6366445632.

The previous prime is 19559588801. The next prime is 19559588813. The reversal of 19559588808 is 80888595591.

It is a hoax number, since the sum of its digits (66) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (19559588801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 475443 + ... + 514941.

It is an arithmetic number, because the mean of its divisors is an integer number (782100000).

Almost surely, 2^19559588808 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 19559588808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25027200000).

19559588808 is an abundant number, since it is smaller than the sum of its proper divisors (30494811192).

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

19559588808 is a wasteful number, since it uses less digits than its factorization.

19559588808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39994 (or 39990 counting only the distinct ones).

The product of its (nonzero) digits is 41472000, while the sum is 66.

The spelling of 19559588808 in words is "nineteen billion, five hundred fifty-nine million, five hundred eighty-eight thousand, eight hundred eight".