2011704065 has 24 divisors (see below), whose sum is σ = 2810198952. Its totient is φ = 1378460160.

The previous prime is 2011704043. The next prime is 2011704067. The reversal of 2011704065 is 5604071102.

It can be written as a sum of positive squares in 4 ways, for example, as 58859584 + 1952844481 = 7672^2 + 44191^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2011704065 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011704067) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 542297 + ... + 545993.

It is an arithmetic number, because the mean of its divisors is an integer number (117091623).

Almost surely, 2^2011704065 is an apocalyptic number.

It is an amenable number.

2011704065 is a deficient number, since it is larger than the sum of its proper divisors (798494887).

2011704065 is a wasteful number, since it uses less digits than its factorization.

2011704065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5937 (or 5930 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 2011704065 is about 44852.0240903351. The cubic root of 2011704065 is about 1262.3739708852.

Adding to 2011704065 its reverse (5604071102), we get a palindrome (7615775167).

The spelling of 2011704065 in words is "two billion, eleven million, seven hundred four thousand, sixty-five".