20589199488 has 448 divisors, whose sum is σ = 72296441280. Its totient is φ = 5755484160.

The previous prime is 20589199481. The next prime is 20589199529. The reversal of 20589199488 is 88499198502.

20589199488 is a `hidden beast` number, since 2 + 0 + 589 + 1 + 9 + 9 + 48 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (20589199481) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 13342845 + ... + 13344387.

It is an arithmetic number, because the mean of its divisors is an integer number (161375985).

Almost surely, 2^20589199488 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 20589199488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36148220640).

20589199488 is an abundant number, since it is smaller than the sum of its proper divisors (51707241792).

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

20589199488 is a wasteful number, since it uses less digits than its factorization.

20589199488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599 (or 1572 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 63.

The spelling of 20589199488 in words is "twenty billion, five hundred eighty-nine million, one hundred ninety-nine thousand, four hundred eighty-eight".