2161716200 has 48 divisors (see below), whose sum is σ = 5743992480. Its totient is φ = 741159360.

The previous prime is 2161716191. The next prime is 2161716217. The reversal of 2161716200 is 26171612.

It is a self number, because there is not a number n which added to its sum of digits gives 2161716200.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 770642 + ... + 773441.

It is an arithmetic number, because the mean of its divisors is an integer number (119666510).

Almost surely, 2^2161716200 is an apocalyptic number.

2161716200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2161716200 is an abundant number, since it is smaller than the sum of its proper divisors (3582276280).

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

2161716200 is a wasteful number, since it uses less digits than its factorization.

2161716200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544106 (or 1544097 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 2161716200 is about 46494.2598607613. The cubic root of 2161716200 is about 1293.0030790187.

Adding to 2161716200 its reverse (26171612), we get a palindrome (2187887812).

The spelling of 2161716200 in words is "two billion, one hundred sixty-one million, seven hundred sixteen thousand, two hundred".