266472960 has 320 divisors, whose sum is σ = 977562432. Its totient is φ = 61341696.

The previous prime is 266472919. The next prime is 266472971. The reversal of 266472960 is 69274662.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (320).

It is a super-2 number, since 2×266472960² = 142015676822323200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1697202 + ... + 1697358.

Almost surely, 2^266472960 is an apocalyptic number.

266472960 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 266472960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (488781216).

266472960 is an abundant number, since it is smaller than the sum of its proper divisors (711089472).

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

266472960 is a wasteful number, since it uses less digits than its factorization.

266472960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 266472960 is about 16323.9995099240. Note that the first 3 decimals coincide. The cubic root of 266472960 is about 643.5037005430.

The spelling of 266472960 in words is "two hundred sixty-six million, four hundred seventy-two thousand, nine hundred sixty".