20081488896 has 594 divisors, whose sum is σ = 71190758418. Its totient is φ = 5643509760.

The previous prime is 20081488879. The next prime is 20081488909. The reversal of 20081488896 is 69888418002.

20081488896 is a `hidden beast` number, since 2 + 0 + 0 + 81 + 488 + 89 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11851370496 + 8230118400 = 108864^2 + 90720^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 329204706 + ... + 329204766.

Almost surely, 2^20081488896 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 20081488896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35595379209).

20081488896 is an abundant number, since it is smaller than the sum of its proper divisors (51109269522).

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

20081488896 is an frugal number, since it uses more digits than its factorization.

20081488896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 54.

The spelling of 20081488896 in words is "twenty billion, eighty-one million, four hundred eighty-eight thousand, eight hundred ninety-six".