201600 has 144 divisors (see below), whose sum is σ = 822120. Its totient is φ = 46080.

The previous prime is 201599. The next prime is 201611. The reversal of 201600 is 6102.

It is a Cunningham number, because it is equal to 449²-1.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a nialpdrome in base 12.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 201600.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 28797 + ... + 28803.

2²⁰¹⁶⁰⁰ is an apocalyptic number.

201600 is a gapful number since it is divisible by the number (20) 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 201600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411060).

201600 is an abundant number, since it is smaller than the sum of its proper divisors (620520).

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

201600 is a wasteful number, since it uses less digits than its factorization.

201600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37 (or 17 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 201600 is about 448.9988864129. The cubic root of 201600 is about 58.6358883551.

Adding to 201600 its reverse (6102), we get a palindrome (207702).

The spelling of 201600 in words is "two hundred one thousand, six hundred".