166710065 has 8 divisors (see below), whose sum is σ = 202462848. Its totient is φ = 131760880.

The previous prime is 166710053. The next prime is 166710073. The reversal of 166710065 is 560017661.

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

It is a de Polignac number, because none of the positive numbers 2^k-166710065 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 200441 + ... + 201270.

It is an arithmetic number, because the mean of its divisors is an integer number (25307856).

Almost surely, 2^166710065 is an apocalyptic number.

It is an amenable number.

166710065 is a deficient number, since it is larger than the sum of its proper divisors (35752783).

166710065 is an equidigital number, since it uses as much as digits as its factorization.

166710065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401799.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 166710065 is about 12911.6251881783. The cubic root of 166710065 is about 550.3689700502.

The spelling of 166710065 in words is "one hundred sixty-six million, seven hundred ten thousand, sixty-five".