160644 has 24 divisors (see below), whose sum is σ = 409248. Its totient is φ = 48640.

The previous prime is 160639. The next prime is 160649. The reversal of 160644 is 446061.

It is an interprime number because it is at equal distance from previous prime (160639) and next prime (160649).

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 160644.

It is not an unprimeable number, because it can be changed into a prime (160649) by changing a digit.

160644 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477 + ... + 740.

It is an arithmetic number, because the mean of its divisors is an integer number (17052).

2¹⁶⁰⁶⁴⁴ is an apocalyptic number.

It is an amenable number.

160644 is an abundant number, since it is smaller than the sum of its proper divisors (248604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

160644 is a wasteful number, since it uses less digits than its factorization.

160644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235 (or 1233 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 160644 is about 400.8041915948. The cubic root of 160644 is about 54.3610916997.

The spelling of 160644 in words is "one hundred sixty thousand, six hundred forty-four".