266244616 has 64 divisors (see below), whose sum is σ = 595330560. Its totient is φ = 110208000.

The previous prime is 266244607. The next prime is 266244617. The reversal of 266244616 is 616442662.

266244616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (266244617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43506 + ... + 49246.

It is an arithmetic number, because the mean of its divisors is an integer number (9302040).

Almost surely, 2^266244616 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 266244616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297665280).

266244616 is an abundant number, since it is smaller than the sum of its proper divisors (329085944).

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

266244616 is a wasteful number, since it uses less digits than its factorization.

266244616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5806 (or 5802 counting only the distinct ones).

The product of its digits is 82944, while the sum is 37.

The square root of 266244616 is about 16317.0038916463. The cubic root of 266244616 is about 643.3198392354.

It can be divided in two parts, 2662 and 44616, that added together give a triangular number (47278 = T₃₀₇).

The spelling of 266244616 in words is "two hundred sixty-six million, two hundred forty-four thousand, six hundred sixteen".