161200216 has 16 divisors (see below), whose sum is σ = 304559640. Its totient is φ = 79984320.

The previous prime is 161200181. The next prime is 161200219. The reversal of 161200216 is 612002161.

161200216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 161200193 and 161200202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161200219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75861 + ... + 77956.

Almost surely, 2^161200216 is an apocalyptic number.

It is an amenable number.

161200216 is a deficient number, since it is larger than the sum of its proper divisors (143359424).

161200216 is a wasteful number, since it uses less digits than its factorization.

161200216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153954 (or 153950 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 161200216 is about 12696.4647047909. The cubic root of 161200216 is about 544.2375962561.

Adding to 161200216 its reverse (612002161), we get a palindrome (773202377).

The spelling of 161200216 in words is "one hundred sixty-one million, two hundred thousand, two hundred sixteen".