266368668480 has 392 divisors, whose sum is σ = 956463314400. Its totient is φ = 70623747072.

The previous prime is 266368668473. The next prime is 266368668493. The reversal of 266368668480 is 84866863662.

266368668480 is a `hidden beast` number, since 2 + 66 + 36 + 8 + 6 + 68 + 480 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 41753931 + ... + 41760309.

Almost surely, 2^266368668480 is an apocalyptic number.

266368668480 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 266368668480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (478231657200).

266368668480 is an abundant number, since it is smaller than the sum of its proper divisors (690094645920).

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

266368668480 is an equidigital number, since it uses as much as digits as its factorization.

266368668480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6593 (or 6568 counting only the distinct ones).

The product of its (nonzero) digits is 95551488, while the sum is 63.

The spelling of 266368668480 in words is "two hundred sixty-six billion, three hundred sixty-eight million, six hundred sixty-eight thousand, four hundred eighty".