2116505011 has 4 divisors (see below), whose sum is σ = 2208526992. Its totient is φ = 2024483032.

The previous prime is 2116505003. The next prime is 2116505033. The reversal of 2116505011 is 1105056112.

It is a happy number.

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 2116505011 - 2³ = 2116505003 is a prime.

It is a super-2 number, since 2×2116505011² = 8959186923176220242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2116505051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46010956 + ... + 46011001.

It is an arithmetic number, because the mean of its divisors is an integer number (552131748).

Almost surely, 2^2116505011 is an apocalyptic number.

2116505011 is a deficient number, since it is larger than the sum of its proper divisors (92021981).

2116505011 is an equidigital number, since it uses as much as digits as its factorization.

2116505011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92021980.

The product of its (nonzero) digits is 300, while the sum is 22.

The square root of 2116505011 is about 46005.4889225188. The cubic root of 2116505011 is about 1283.9253301929.

The spelling of 2116505011 in words is "two billion, one hundred sixteen million, five hundred five thousand, eleven".