2116656 has 30 divisors (see below), whose sum is σ = 5924100. Its totient is φ = 705504.

The previous prime is 2116651. The next prime is 2116663. The reversal of 2116656 is 6566112.

It is a happy number.

2116656 is a `hidden beast` number, since 2 + 1 + 1 + 6 + 656 = 666.

It is a super-3 number, since 3×2116656³ = 28449333784389685248, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2116651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7206 + ... + 7493.

It is an arithmetic number, because the mean of its divisors is an integer number (197470).

2^2116656 is an apocalyptic number.

It is an amenable number.

2116656 is an abundant number, since it is smaller than the sum of its proper divisors (3807444).

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

2116656 is a wasteful number, since it uses less digits than its factorization.

2116656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14713 (or 14704 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 2116656 is about 1454.8731903503. The cubic root of 2116656 is about 128.3955860712.

It can be divided in two parts, 2116 and 656, that added together give a palindrome (2772).

The spelling of 2116656 in words is "two million, one hundred sixteen thousand, six hundred fifty-six".