266989360006080 has 448 divisors, whose sum is σ = 943682901657600. Its totient is φ = 71060949872640.

The previous prime is 266989360006051. The next prime is 266989360006093. The reversal of 266989360006080 is 80600063989662.

266989360006080 is a `hidden beast` number, since 2 + 6 + 69 + 89 + 360 + 0 + 0 + 60 + 80 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 266989360005999 and 266989360006017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9811803675 + ... + 9811830885.

Almost surely, 2^{266989360006080} is an apocalyptic number.

266989360006080 is a gapful number since it is divisible by the number (20) 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 266989360006080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (471841450828800).

266989360006080 is an abundant number, since it is smaller than the sum of its proper divisors (676693541651520).

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

266989360006080 is a wasteful number, since it uses less digits than its factorization.

266989360006080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29369 (or 29353 counting only the distinct ones).

The product of its (nonzero) digits is 40310784, while the sum is 63.

The spelling of 266989360006080 in words is "two hundred sixty-six trillion, nine hundred eighty-nine billion, three hundred sixty million, six thousand, eighty".