266880903120 has 480 divisors, whose sum is σ = 1001390906880. Its totient is φ = 63273000960.

The previous prime is 266880903077. The next prime is 266880903181. The reversal of 266880903120 is 21309088662.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 30312639 + ... + 30321441.

It is an arithmetic number, because the mean of its divisors is an integer number (2086231056).

Almost surely, 2^266880903120 is an apocalyptic number.

266880903120 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 266880903120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (500695453440).

266880903120 is an abundant number, since it is smaller than the sum of its proper divisors (734510003760).

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

266880903120 is a wasteful number, since it uses less digits than its factorization.

266880903120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8955 (or 8946 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 266880903120 in words is "two hundred sixty-six billion, eight hundred eighty million, nine hundred three thousand, one hundred twenty".