189265566664 has 16 divisors (see below), whose sum is σ = 354880244700. Its totient is φ = 94630834752.

The previous prime is 189265566593. The next prime is 189265566703. The reversal of 189265566664 is 466665562981.

It can be written as a sum of positive squares in 2 ways, for example, as 184004965764 + 5260600900 = 428958^2 + 72530^2 .

It is a junction number, because it is equal to n+sod(n) for n = 189265566596 and 189265566605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221454 + ... + 653890.

Almost surely, 2^189265566664 is an apocalyptic number.

It is an amenable number.

189265566664 is a deficient number, since it is larger than the sum of its proper divisors (165614678036).

189265566664 is a wasteful number, since it uses less digits than its factorization.

189265566664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487152 (or 487148 counting only the distinct ones).

The product of its digits is 111974400, while the sum is 64.

The spelling of 189265566664 in words is "one hundred eighty-nine billion, two hundred sixty-five million, five hundred sixty-six thousand, six hundred sixty-four".