160640 has 32 divisors (see below), whose sum is σ = 385560. Its totient is φ = 64000.

The previous prime is 160639. The next prime is 160649. The reversal of 160640 is 46061.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515 + ... + 765.

2¹⁶⁰⁶⁴⁰ is an apocalyptic number.

160640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 160640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192780).

160640 is an abundant number, since it is smaller than the sum of its proper divisors (224920).

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

160640 is an equidigital number, since it uses as much as digits as its factorization.

160640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 160640 is about 400.7992015960. The cubic root of 160640 is about 54.3606405029.

It can be divided in two parts, 160 and 640, that multiplied together give a square (102400 = 320²).

The spelling of 160640 in words is "one hundred sixty thousand, six hundred forty".