2171200016 has 40 divisors (see below), whose sum is σ = 4486275360. Its totient is φ = 1014372864.

The previous prime is 2171200007. The next prime is 2171200019. The reversal of 2171200016 is 6100021712.

It is not an unprimeable number, because it can be changed into a prime (2171200019) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9095 + ... + 66521.

It is an arithmetic number, because the mean of its divisors is an integer number (112156884).

Almost surely, 2^2171200016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2171200016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2243137680).

2171200016 is an abundant number, since it is smaller than the sum of its proper divisors (2315075344).

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

2171200016 is a wasteful number, since it uses less digits than its factorization.

2171200016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57591 (or 57585 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 2171200016 is about 46596.1373506431. The cubic root of 2171200016 is about 1294.8911952234.

Adding to 2171200016 its reverse (6100021712), we get a palindrome (8271221728).

The spelling of 2171200016 in words is "two billion, one hundred seventy-one million, two hundred thousand, sixteen".