160660985 has 4 divisors (see below), whose sum is σ = 192793188. Its totient is φ = 128528784.

The previous prime is 160660961. The next prime is 160660991. The reversal of 160660985 is 589066061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 589066061 = 31 ⋅19002131.

It can be written as a sum of positive squares in 2 ways, for example, as 51437584 + 109223401 = 7172^2 + 10451^2 .

It is a cyclic number.

It is not a de Polignac number, because 160660985 - 2²⁴ = 143883769 is a prime.

It is a Duffinian number.

It is a Curzon 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, 16066094 + ... + 16066103.

It is an arithmetic number, because the mean of its divisors is an integer number (48198297).

Almost surely, 2^160660985 is an apocalyptic number.

It is an amenable number.

160660985 is a deficient number, since it is larger than the sum of its proper divisors (32132203).

160660985 is an equidigital number, since it uses as much as digits as its factorization.

160660985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32132202.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 160660985 is about 12675.2114380787. The cubic root of 160660985 is about 543.6300751069.

The spelling of 160660985 in words is "one hundred sixty million, six hundred sixty thousand, nine hundred eighty-five".