2116655256 has 32 divisors (see below), whose sum is σ = 5311180800. Its totient is φ = 702946080.

The previous prime is 2116655249. The next prime is 2116655257. The reversal of 2116655256 is 6525566112.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116655257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156216 + ... + 169223.

It is an arithmetic number, because the mean of its divisors is an integer number (165974400).

Almost surely, 2^2116655256 is an apocalyptic number.

It is an amenable number.

2116655256 is an abundant number, since it is smaller than the sum of its proper divisors (3194525544).

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

2116655256 is a wasteful number, since it uses less digits than its factorization.

2116655256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325719 (or 325715 counting only the distinct ones).

The product of its digits is 108000, while the sum is 39.

The square root of 2116655256 is about 46007.1217965219. The cubic root of 2116655256 is about 1283.9557102763.

The spelling of 2116655256 in words is "two billion, one hundred sixteen million, six hundred fifty-five thousand, two hundred fifty-six".