266273916 has 12 divisors (see below), whose sum is σ = 621305832. Its totient is φ = 88757968.

The previous prime is 266273899. The next prime is 266273933. The reversal of 266273916 is 619372662.

It is an interprime number because it is at equal distance from previous prime (266273899) and next prime (266273933).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11094735 + ... + 11094758.

It is an arithmetic number, because the mean of its divisors is an integer number (51775486).

Almost surely, 2^266273916 is an apocalyptic number.

It is an amenable number.

266273916 is an abundant number, since it is smaller than the sum of its proper divisors (355031916).

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

266273916 is a wasteful number, since it uses less digits than its factorization.

266273916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22189500 (or 22189498 counting only the distinct ones).

The product of its digits is 163296, while the sum is 42.

The square root of 266273916 is about 16317.9017033441. The cubic root of 266273916 is about 643.3434373087.

The spelling of 266273916 in words is "two hundred sixty-six million, two hundred seventy-three thousand, nine hundred sixteen".