66110589 has 12 divisors (see below), whose sum is σ = 95836572. Its totient is φ = 43915200.

The previous prime is 66110587. The next prime is 66110647. The reversal of 66110589 is 98501166.

66110589 is a `hidden beast` number, since 6 + 61 + 10 + 589 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 45562500 + 20548089 = 6750^2 + 4533^2 .

It is not a de Polignac number, because 66110589 - 2¹ = 66110587 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66110587) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10542 + ... + 15599.

It is an arithmetic number, because the mean of its divisors is an integer number (7986381).

Almost surely, 2^66110589 is an apocalyptic number.

It is an amenable number.

66110589 is a deficient number, since it is larger than the sum of its proper divisors (29725983).

66110589 is a wasteful number, since it uses less digits than its factorization.

66110589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26428 (or 26425 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 66110589 is about 8130.8418383338. The cubic root of 66110589 is about 404.3495916118.

The spelling of 66110589 in words is "sixty-six million, one hundred ten thousand, five hundred eighty-nine".