160720000 has 240 divisors, whose sum is σ = 476777070. Its totient is φ = 53760000.

The previous prime is 160719991. The next prime is 160720003. The reversal of 160720000 is 27061.

It can be written as a sum of positive squares in 5 ways, for example, as 4769856 + 155950144 = 2184^2 + 12488^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (160720003) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 3919980 + ... + 3920020.

Almost surely, 2^160720000 is an apocalyptic number.

160720000 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 160720000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238388535).

160720000 is an abundant number, since it is smaller than the sum of its proper divisors (316057070).

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

160720000 is an frugal number, since it uses more digits than its factorization.

160720000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89 (or 55 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 160720000 is about 12677.5391933924. The cubic root of 160720000 is about 543.6966301606.

Adding to 160720000 its reverse (27061), we get a palindrome (160747061).

The spelling of 160720000 in words is "one hundred sixty million, seven hundred twenty thousand".