16988397888 has 224 divisors, whose sum is σ = 57408519168. Its totient is φ = 4304793600.

The previous prime is 16988397887. The next prime is 16988397911. The reversal of 16988397888 is 88879388961.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16988397887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 592131 + ... + 620157.

It is an arithmetic number, because the mean of its divisors is an integer number (256288032).

Almost surely, 2^16988397888 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 16988397888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28704259584).

16988397888 is an abundant number, since it is smaller than the sum of its proper divisors (40420121280).

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

16988397888 is a wasteful number, since it uses less digits than its factorization.

16988397888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28101 (or 28091 counting only the distinct ones).

The product of its digits is 334430208, while the sum is 75.

The spelling of 16988397888 in words is "sixteen billion, nine hundred eighty-eight million, three hundred ninety-seven thousand, eight hundred eighty-eight".