1165003266 has 16 divisors (see below), whose sum is σ = 2662864704. Its totient is φ = 332858064.

The previous prime is 1165003261. The next prime is 1165003331. The reversal of 1165003266 is 6623005611.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1165003261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13869045 + ... + 13869128.

It is an arithmetic number, because the mean of its divisors is an integer number (166429044).

Almost surely, 2^1165003266 is an apocalyptic number.

1165003266 is an abundant number, since it is smaller than the sum of its proper divisors (1497861438).

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

1165003266 is a wasteful number, since it uses less digits than its factorization.

1165003266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27738185.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 1165003266 is about 34132.1441752492. The cubic root of 1165003266 is about 1052.2260456055.

Adding to 1165003266 its reverse (6623005611), we get a palindrome (7788008877).

The spelling of 1165003266 in words is "one billion, one hundred sixty-five million, three thousand, two hundred sixty-six".