2116609568 has 48 divisors (see below), whose sum is σ = 4417830144. Its totient is φ = 996468480.

The previous prime is 2116609541. The next prime is 2116609589. The reversal of 2116609568 is 8659066112.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7871 + ... + 65537.

It is an arithmetic number, because the mean of its divisors is an integer number (92038128).

Almost surely, 2^2116609568 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 2116609568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2208915072).

2116609568 is an abundant number, since it is smaller than the sum of its proper divisors (2301220576).

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

2116609568 is a wasteful number, since it uses less digits than its factorization.

2116609568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57745 (or 57737 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 2116609568 is about 46006.6252620207. The cubic root of 2116609568 is about 1283.9464721493.

The spelling of 2116609568 in words is "two billion, one hundred sixteen million, six hundred nine thousand, five hundred sixty-eight".