266653872 has 30 divisors (see below), whose sum is σ = 746260892. Its totient is φ = 88884576.

The previous prime is 266653867. The next prime is 266653883. The reversal of 266653872 is 278356662.

It is a happy number.

266653872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×266653872² = 142208574905184768, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 925738 + ... + 926025.

Almost surely, 2^266653872 is an apocalyptic number.

It is an amenable number.

266653872 is an abundant number, since it is smaller than the sum of its proper divisors (479607020).

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

266653872 is a wasteful number, since it uses less digits than its factorization.

266653872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851777 (or 1851768 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 266653872 is about 16329.5398587958. The cubic root of 266653872 is about 643.6492953101.

The spelling of 266653872 in words is "two hundred sixty-six million, six hundred fifty-three thousand, eight hundred seventy-two".