160166665 has 4 divisors (see below), whose sum is σ = 192200004. Its totient is φ = 128133328.

The previous prime is 160166659. The next prime is 160166711. The reversal of 160166665 is 566661061.

160166665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 566661061 = 701 ⋅808361.

It can be written as a sum of positive squares in 2 ways, for example, as 124010496 + 36156169 = 11136^2 + 6013^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-160166665 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16016662 + ... + 16016671.

It is an arithmetic number, because the mean of its divisors is an integer number (48050001).

Almost surely, 2^160166665 is an apocalyptic number.

It is an amenable number.

160166665 is a deficient number, since it is larger than the sum of its proper divisors (32033339).

160166665 is an equidigital number, since it uses as much as digits as its factorization.

160166665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32033338.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 160166665 is about 12655.6969385333. The cubic root of 160166665 is about 543.0719572447.

The spelling of 160166665 in words is "one hundred sixty million, one hundred sixty-six thousand, six hundred sixty-five".