66606085 has 64 divisors (see below), whose sum is σ = 106444800. Its totient is φ = 38817792.

The previous prime is 66606061. The next prime is 66606121. The reversal of 66606085 is 58060666.

It is not a de Polignac number, because 66606085 - 2⁵ = 66606053 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 611011 + ... + 611119.

It is an arithmetic number, because the mean of its divisors is an integer number (1663200).

Almost surely, 2^66606085 is an apocalyptic number.

66606085 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

66606085 is a deficient number, since it is larger than the sum of its proper divisors (39838715).

66606085 is a wasteful number, since it uses less digits than its factorization.

66606085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 66606085 is about 8161.2551118073. The cubic root of 66606085 is about 405.3572725039.

The spelling of 66606085 in words is "sixty-six million, six hundred six thousand, eighty-five".