266876916 has 12 divisors (see below), whose sum is σ = 622712832. Its totient is φ = 88958968.

The previous prime is 266876903. The next prime is 266876917. The reversal of 266876916 is 619678662.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266876917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11119860 + ... + 11119883.

It is an arithmetic number, because the mean of its divisors is an integer number (51892736).

Almost surely, 2^266876916 is an apocalyptic number.

It is an amenable number.

266876916 is an abundant number, since it is smaller than the sum of its proper divisors (355835916).

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

266876916 is a wasteful number, since it uses less digits than its factorization.

266876916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22239750 (or 22239748 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 51.

The square root of 266876916 is about 16336.3678949759. The cubic root of 266876916 is about 643.8287065485.

The spelling of 266876916 in words is "two hundred sixty-six million, eight hundred seventy-six thousand, nine hundred sixteen".