10808318640 has 640 divisors, whose sum is σ = 41688760320. Its totient is φ = 2264371200.

The previous prime is 10808318627. The next prime is 10808318659. The reversal of 10808318640 is 4681380801.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 136814121 + ... + 136814199.

It is an arithmetic number, because the mean of its divisors is an integer number (65138688).

Almost surely, 2^10808318640 is an apocalyptic number.

10808318640 is a gapful number since it is divisible by the number (10) 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 10808318640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20844380160).

10808318640 is an abundant number, since it is smaller than the sum of its proper divisors (30880441680).

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

10808318640 is a wasteful number, since it uses less digits than its factorization.

10808318640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The spelling of 10808318640 in words is "ten billion, eight hundred eight million, three hundred eighteen thousand, six hundred forty".