2116616 has 8 divisors (see below), whose sum is σ = 3968670. Its totient is φ = 1058304.

The previous prime is 2116607. The next prime is 2116627. The reversal of 2116616 is 6166112.

It can be written as a sum of positive squares in only one way, i.e., 2114116 + 2500 = 1454^2 + 50^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 2116591 and 2116600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132281 + ... + 132296.

2^2116616 is an apocalyptic number.

It is an amenable number.

2116616 is a deficient number, since it is larger than the sum of its proper divisors (1852054).

2116616 is a wasteful number, since it uses less digits than its factorization.

2116616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264583 (or 264579 counting only the distinct ones).

The product of its digits is 432, while the sum is 23.

The square root of 2116616 is about 1454.8594433828. The cubic root of 2116616 is about 128.3947772710.

The spelling of 2116616 in words is "two million, one hundred sixteen thousand, six hundred sixteen".