266516316 has 72 divisors (see below), whose sum is σ = 737768304. Its totient is φ = 80451840.

The previous prime is 266516267. The next prime is 266516353. The reversal of 266516316 is 613615662.

266516316 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114880 + ... + 117176.

It is an arithmetic number, because the mean of its divisors is an integer number (10246782).

Almost surely, 2^266516316 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266516316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (368884152).

266516316 is an abundant number, since it is smaller than the sum of its proper divisors (471251988).

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

266516316 is a wasteful number, since it uses less digits than its factorization.

266516316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2611 (or 2606 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 266516316 is about 16325.3274392889. The cubic root of 266516316 is about 643.5385986849.

It can be divided in two parts, 26651631 and 6, that multiplied together give a triangular number (159909786 = T₁₇₈₈₃).

The spelling of 266516316 in words is "two hundred sixty-six million, five hundred sixteen thousand, three hundred sixteen".