160531920 has 120 divisors (see below), whose sum is σ = 548402400. Its totient is φ = 42071808.

The previous prime is 160531913. The next prime is 160531957. The reversal of 160531920 is 29135061.

160531920 is a `hidden beast` number, since 1 + 605 + 31 + 9 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40591 + ... + 44369.

It is an arithmetic number, because the mean of its divisors is an integer number (4570020).

Almost surely, 2^160531920 is an apocalyptic number.

160531920 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 160531920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274201200).

160531920 is an abundant number, since it is smaller than the sum of its proper divisors (387870480).

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

160531920 is a wasteful number, since it uses less digits than its factorization.

160531920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3857 (or 3848 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 160531920 is about 12670.1191786029. The cubic root of 160531920 is about 543.4844632929.

Adding to 160531920 its reverse (29135061), we get a palindrome (189666981).

The spelling of 160531920 in words is "one hundred sixty million, five hundred thirty-one thousand, nine hundred twenty".