66085089 has 8 divisors (see below), whose sum is σ = 100701120. Its totient is φ = 37762896.

The previous prime is 66085067. The next prime is 66085111. The reversal of 66085089 is 98058066.

It is an interprime number because it is at equal distance from previous prime (66085067) and next prime (66085111).

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

It is not a de Polignac number, because 66085089 - 2⁵ = 66085057 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 66085089.

It is not an unprimeable number, because it can be changed into a prime (66085009) 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, 1573434 + ... + 1573475.

It is an arithmetic number, because the mean of its divisors is an integer number (12587640).

Almost surely, 2^66085089 is an apocalyptic number.

It is an amenable number.

66085089 is a deficient number, since it is larger than the sum of its proper divisors (34616031).

66085089 is a wasteful number, since it uses less digits than its factorization.

66085089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3146919.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 66085089 is about 8129.2735837835. The cubic root of 66085089 is about 404.2975967109.

The spelling of 66085089 in words is "sixty-six million, eighty-five thousand, eighty-nine".