252546330266 has 4 divisors (see below), whose sum is σ = 378819495402. Its totient is φ = 126273165132.

The previous prime is 252546330259. The next prime is 252546330269. The reversal of 252546330266 is 662033645252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 158248818025 + 94297512241 = 397805^2 + 307079^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (252546330269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63136582565 + ... + 63136582568.

Almost surely, 2^252546330266 is an apocalyptic number.

252546330266 is a deficient number, since it is larger than the sum of its proper divisors (126273165136).

252546330266 is a wasteful number, since it uses less digits than its factorization.

252546330266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126273165135.

The product of its (nonzero) digits is 1555200, while the sum is 44.

The spelling of 252546330266 in words is "two hundred fifty-two billion, five hundred forty-six million, three hundred thirty thousand, two hundred sixty-six".