266552530289 has 8 divisors (see below), whose sum is σ = 276018993408. Its totient is φ = 257140316880.

The previous prime is 266552530261. The next prime is 266552530291. The reversal of 266552530289 is 982035255662.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266552530289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 266552530289.

It is not an unprimeable number, because it can be changed into a prime (266552550289) 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, 13552427 + ... + 13572080.

It is an arithmetic number, because the mean of its divisors is an integer number (34502374176).

Almost surely, 2^266552530289 is an apocalyptic number.

It is an amenable number.

266552530289 is a deficient number, since it is larger than the sum of its proper divisors (9466463119).

266552530289 is a wasteful number, since it uses less digits than its factorization.

266552530289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27124855.

The product of its (nonzero) digits is 7776000, while the sum is 53.

The spelling of 266552530289 in words is "two hundred sixty-six billion, five hundred fifty-two million, five hundred thirty thousand, two hundred eighty-nine".