2116451043 has 12 divisors (see below), whose sum is σ = 3493824048. Its totient is φ = 1209400560.

The previous prime is 2116451041. The next prime is 2116451083. The reversal of 2116451043 is 3401546112.

It is a happy number.

2116451043 is a `hidden beast` number, since 2 + 1 + 1 + 645 + 10 + 4 + 3 = 666.

It is not a de Polignac number, because 2116451043 - 2¹ = 2116451041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2116450998 and 2116451016.

It is not an unprimeable number, because it can be changed into a prime (2116451041) 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 11 ways as a sum of consecutive naturals, for example, 16797168 + ... + 16797293.

It is an arithmetic number, because the mean of its divisors is an integer number (291152004).

Almost surely, 2^2116451043 is an apocalyptic number.

2116451043 is a deficient number, since it is larger than the sum of its proper divisors (1377373005).

2116451043 is a wasteful number, since it uses less digits than its factorization.

2116451043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33594474 (or 33594471 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2116451043 is about 46004.9023800725. The cubic root of 2116451043 is about 1283.9144173167.

Adding to 2116451043 its reverse (3401546112), we get a palindrome (5517997155).

The spelling of 2116451043 in words is "two billion, one hundred sixteen million, four hundred fifty-one thousand, forty-three".