180562266 has 12 divisors (see below), whose sum is σ = 391218282. Its totient is φ = 60187416.

The previous prime is 180562247. The next prime is 180562273. The reversal of 180562266 is 662265081.

It can be written as a sum of positive squares in only one way, i.e., 106688241 + 73874025 = 10329^2 + 8595^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 180562266.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5015601 + ... + 5015636.

Almost surely, 2^180562266 is an apocalyptic number.

180562266 is an abundant number, since it is smaller than the sum of its proper divisors (210656016).

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

180562266 is a wasteful number, since it uses less digits than its factorization.

180562266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10031245 (or 10031242 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 180562266 is about 13437.3459433029. The cubic root of 180562266 is about 565.2089090934.

The spelling of 180562266 in words is "one hundred eighty million, five hundred sixty-two thousand, two hundred sixty-six".