6689098240 has 160 divisors (see below), whose sum is σ = 18101698560. Its totient is φ = 2348236800.

The previous prime is 6689098237. The next prime is 6689098261. The reversal of 6689098240 is 428909866.

It is a tau number, because it is divible by the number of its divisors (160).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 812545 + ... + 820735.

It is an arithmetic number, because the mean of its divisors is an integer number (113135616).

Almost surely, 2^6689098240 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 6689098240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9050849280).

6689098240 is an abundant number, since it is smaller than the sum of its proper divisors (11412600320).

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

6689098240 is a wasteful number, since it uses less digits than its factorization.

6689098240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8254 (or 8238 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 52.

The square root of 6689098240 is about 81786.9075096986. The cubic root of 6689098240 is about 1884.1805865156.

The spelling of 6689098240 in words is "six billion, six hundred eighty-nine million, ninety-eight thousand, two hundred forty".