266684672 has 18 divisors (see below), whose sum is σ = 532328118. Its totient is φ = 133342208.

The previous prime is 266684669. The next prime is 266684689. The reversal of 266684672 is 276486662.

It can be written as a sum of positive squares in only one way, i.e., 139806976 + 126877696 = 11824^2 + 11264^2 .

It is a super-2 number, since 2×266684672² = 142241428559495168, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520613 + ... + 521124.

Almost surely, 2^266684672 is an apocalyptic number.

It is an amenable number.

266684672 is a deficient number, since it is larger than the sum of its proper divisors (265643446).

266684672 is an equidigital number, since it uses as much as digits as its factorization.

266684672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041753 (or 1041739 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 47.

The square root of 266684672 is about 16330.4829077404. The cubic root of 266684672 is about 643.6740760429.

The spelling of 266684672 in words is "two hundred sixty-six million, six hundred eighty-four thousand, six hundred seventy-two".