266000000 has 224 divisors, whose sum is σ = 796864800. Its totient is φ = 86400000.

The previous prime is 265999961. The next prime is 266000017. The reversal of 266000000 is 662.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 13999991 + ... + 14000009.

Almost surely, 2^266000000 is an apocalyptic number.

266000000 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 266000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (398432400).

266000000 is an abundant number, since it is smaller than the sum of its proper divisors (530864800).

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

266000000 is an frugal number, since it uses more digits than its factorization.

266000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70 (or 33 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 266000000 is about 16309.5064303001. The cubic root of 266000000 is about 643.1227591380.

Adding to 266000000 its reverse (662), we get a palindrome (266000662).

The spelling of 266000000 in words is "two hundred sixty-six million", and thus it is an aban number.