2116500611 has 4 divisors (see below), whose sum is σ = 2227895400. Its totient is φ = 2005105824.

The previous prime is 2116500599. The next prime is 2116500643. The reversal of 2116500611 is 1160056112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2116500611 - 2²² = 2112306307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2116500311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55697366 + ... + 55697403.

It is an arithmetic number, because the mean of its divisors is an integer number (556973850).

Almost surely, 2^2116500611 is an apocalyptic number.

2116500611 is a deficient number, since it is larger than the sum of its proper divisors (111394789).

2116500611 is a wasteful number, since it uses less digits than its factorization.

2116500611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111394788.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 2116500611 is about 46005.4411021131. The cubic root of 2116500611 is about 1283.9244404752.

Adding to 2116500611 its reverse (1160056112), we get a palindrome (3276556723).

The spelling of 2116500611 in words is "two billion, one hundred sixteen million, five hundred thousand, six hundred eleven".