16820489088 has 192 divisors, whose sum is σ = 52667924400. Its totient is φ = 5121736704.

The previous prime is 16820489069. The next prime is 16820489093. The reversal of 16820489088 is 88098402861.

16820489088 is a `hidden beast` number, since 1 + 6 + 82 + 0 + 489 + 0 + 88 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

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, 1446883 + ... + 1458461.

Almost surely, 2^16820489088 is an apocalyptic number.

16820489088 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16820489088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26333962200).

16820489088 is an abundant number, since it is smaller than the sum of its proper divisors (35847435312).

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

16820489088 is a wasteful number, since it uses less digits than its factorization.

16820489088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11709 (or 11694 counting only the distinct ones).

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

The spelling of 16820489088 in words is "sixteen billion, eight hundred twenty million, four hundred eighty-nine thousand, eighty-eight".