2116333161 has 6 divisors (see below), whose sum is σ = 3056925690. Its totient is φ = 1410888768.

The previous prime is 2116333151. The next prime is 2116333169. The reversal of 2116333161 is 1613336112.

2116333161 is a `hidden beast` number, since 2 + 11 + 633 + 3 + 16 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1802511936 + 313821225 = 42456^2 + 17715^2 .

It is not a de Polignac number, because 2116333161 - 2⁵ = 2116333129 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2116333169) 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 5 ways as a sum of consecutive naturals, for example, 117574056 + ... + 117574073.

It is an arithmetic number, because the mean of its divisors is an integer number (509487615).

Almost surely, 2^2116333161 is an apocalyptic number.

It is an amenable number.

2116333161 is a deficient number, since it is larger than the sum of its proper divisors (940592529).

2116333161 is a wasteful number, since it uses less digits than its factorization.

2116333161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235148135 (or 235148132 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 2116333161 is about 46003.6211726860. The cubic root of 2116333161 is about 1283.8905797373.

Adding to 2116333161 its reverse (1613336112), we get a palindrome (3729669273).

The spelling of 2116333161 in words is "two billion, one hundred sixteen million, three hundred thirty-three thousand, one hundred sixty-one".