160221300 has 72 divisors (see below), whose sum is σ = 487989600. Its totient is φ = 40475520.

The previous prime is 160221293. The next prime is 160221301. The reversal of 160221300 is 3122061.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 160221300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160221301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8355 + ... + 19754.

Almost surely, 2^160221300 is an apocalyptic number.

160221300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

160221300 is an abundant number, since it is smaller than the sum of its proper divisors (327768300).

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

160221300 is a wasteful number, since it uses less digits than its factorization.

160221300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28145 (or 28138 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 160221300 is about 12657.8552685674. The cubic root of 160221300 is about 543.1336999370.

Adding to 160221300 its reverse (3122061), we get a palindrome (163343361).

The spelling of 160221300 in words is "one hundred sixty million, two hundred twenty-one thousand, three hundred".