266867747760 has 160 divisors (see below), whose sum is σ = 831064665600. Its totient is φ = 70840827904.

The previous prime is 266867747759. The next prime is 266867747767. The reversal of 266867747760 is 67747768662.

266867747760 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 266867747691 and 266867747700.

It is not an unprimeable number, because it can be changed into a prime (266867747767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50321269 + ... + 50326571.

It is an arithmetic number, because the mean of its divisors is an integer number (5194154160).

Almost surely, 2^266867747760 is an apocalyptic number.

266867747760 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 266867747760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (415532332800).

266867747760 is an abundant number, since it is smaller than the sum of its proper divisors (564196917840).

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

266867747760 is a wasteful number, since it uses less digits than its factorization.

266867747760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6235 (or 6229 counting only the distinct ones).

The product of its (nonzero) digits is 199148544, while the sum is 66.

The spelling of 266867747760 in words is "two hundred sixty-six billion, eight hundred sixty-seven million, seven hundred forty-seven thousand, seven hundred sixty".