2256711216 has 40 divisors (see below), whose sum is σ = 6017900544. Its totient is φ = 727970880.

The previous prime is 2256711199. The next prime is 2256711229. The reversal of 2256711216 is 6121176522.

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, 756816 + ... + 759791.

Almost surely, 2^2256711216 is an apocalyptic number.

It is an amenable number.

2256711216 is an abundant number, since it is smaller than the sum of its proper divisors (3761189328).

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

2256711216 is a wasteful number, since it uses less digits than its factorization.

2256711216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516649 (or 1516643 counting only the distinct ones).

The product of its digits is 10080, while the sum is 33.

The square root of 2256711216 is about 47504.8546571821. The cubic root of 2256711216 is about 1311.6722454892.

Adding to 2256711216 its reverse (6121176522), we get a palindrome (8377887738).

The spelling of 2256711216 in words is "two billion, two hundred fifty-six million, seven hundred eleven thousand, two hundred sixteen".