166616675 has 6 divisors (see below), whose sum is σ = 206604708. Its totient is φ = 133293320.

The previous prime is 166616663. The next prime is 166616689. The reversal of 166616675 is 576616661.

It is not a de Polignac number, because 166616675 - 2¹⁶ = 166551139 is a prime.

It is a super-2 number, since 2×166616675² = 55522232776111250, which contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 3332309 + ... + 3332358.

It is an arithmetic number, because the mean of its divisors is an integer number (34434118).

Almost surely, 2^166616675 is an apocalyptic number.

166616675 is a deficient number, since it is larger than the sum of its proper divisors (39988033).

166616675 is an equidigital number, since it uses as much as digits as its factorization.

166616675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6664677 (or 6664672 counting only the distinct ones).

The product of its digits is 272160, while the sum is 44.

The square root of 166616675 is about 12908.0081732233. The cubic root of 166616675 is about 550.2661796980.

The spelling of 166616675 in words is "one hundred sixty-six million, six hundred sixteen thousand, six hundred seventy-five".