4005511011 has 24 divisors (see below), whose sum is σ = 6097728000. Its totient is φ = 2526690672.

The previous prime is 4005510997. The next prime is 4005511043. The reversal of 4005511011 is 1101155004.

It is a happy number.

It is not a de Polignac number, because 4005511011 - 2¹³ = 4005502819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4005512011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129510 + ... + 157428.

It is an arithmetic number, because the mean of its divisors is an integer number (254072000).

Almost surely, 2^4005511011 is an apocalyptic number.

4005511011 is a deficient number, since it is larger than the sum of its proper divisors (2092216989).

4005511011 is a wasteful number, since it uses less digits than its factorization.

4005511011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28783 (or 28780 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 4005511011 is about 63289.1065745125. The cubic root of 4005511011 is about 1588.1297328115.

Adding to 4005511011 its reverse (1101155004), we get a palindrome (5106666015).

The spelling of 4005511011 in words is "four billion, five million, five hundred eleven thousand, eleven".