163465585 has 4 divisors (see below), whose sum is σ = 196158708. Its totient is φ = 130772464.

The previous prime is 163465553. The next prime is 163465619. The reversal of 163465585 is 585564361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 585564361 = 127 ⋅4610743.

It can be written as a sum of positive squares in 2 ways, for example, as 27206656 + 136258929 = 5216^2 + 11673^2 .

It is a cyclic number.

It is not a de Polignac number, because 163465585 - 2⁵ = 163465553 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, 16346554 + ... + 16346563.

It is an arithmetic number, because the mean of its divisors is an integer number (49039677).

Almost surely, 2^163465585 is an apocalyptic number.

It is an amenable number.

163465585 is a deficient number, since it is larger than the sum of its proper divisors (32693123).

163465585 is an equidigital number, since it uses as much as digits as its factorization.

163465585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32693122.

The product of its digits is 432000, while the sum is 43.

The square root of 163465585 is about 12785.3660487293. The cubic root of 163465585 is about 546.7751616820.

The spelling of 163465585 in words is "one hundred sixty-three million, four hundred sixty-five thousand, five hundred eighty-five".