266685264 has 40 divisors (see below), whose sum is σ = 765486720. Its totient is φ = 88894944.

The previous prime is 266685217. The next prime is 266685271. The reversal of 266685264 is 462586662.

It is a super-2 number, since 2×266685264² = 142242060069499392, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308232 + ... + 309095.

It is an arithmetic number, because the mean of its divisors is an integer number (19137168).

Almost surely, 2^266685264 is an apocalyptic number.

266685264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

266685264 is an abundant number, since it is smaller than the sum of its proper divisors (498801456).

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

266685264 is a wasteful number, since it uses less digits than its factorization.

266685264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617344 (or 617332 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 266685264 is about 16330.5010333425. The cubic root of 266685264 is about 643.6745523292.

The spelling of 266685264 in words is "two hundred sixty-six million, six hundred eighty-five thousand, two hundred sixty-four".