266768500 has 48 divisors (see below), whose sum is σ = 592562880. Its totient is φ = 104887200.

The previous prime is 266768461. The next prime is 266768519. The reversal of 266768500 is 5867662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24979 + ... + 34021.

It is an arithmetic number, because the mean of its divisors is an integer number (12345060).

Almost surely, 2^266768500 is an apocalyptic number.

266768500 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 266768500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296281440).

266768500 is an abundant number, since it is smaller than the sum of its proper divisors (325794380).

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

266768500 is a wasteful number, since it uses less digits than its factorization.

266768500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9121 (or 9109 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 266768500 is about 16333.0493172586. The cubic root of 266768500 is about 643.7415118119.

The spelling of 266768500 in words is "two hundred sixty-six million, seven hundred sixty-eight thousand, five hundred".