6551611011 has 24 divisors (see below), whose sum is σ = 10931032944. Its totient is φ = 3737103360.

The previous prime is 6551610941. The next prime is 6551611037. The reversal of 6551611011 is 1101161556.

6551611011 is a `hidden beast` number, since 6 + 551 + 6 + 1 + 101 + 1 = 666.

It is not a de Polignac number, because 6551611011 - 2¹⁷ = 6551479939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6551611051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1944726 + ... + 1948091.

It is an arithmetic number, because the mean of its divisors is an integer number (455459706).

Almost surely, 2^6551611011 is an apocalyptic number.

6551611011 is a deficient number, since it is larger than the sum of its proper divisors (4379421933).

6551611011 is a wasteful number, since it uses less digits than its factorization.

6551611011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3892851 (or 3892848 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 27.

The square root of 6551611011 is about 80942.0225284740. The cubic root of 6551611011 is about 1871.1820156210.

Adding to 6551611011 its reverse (1101161556), we get a palindrome (7652772567).

The spelling of 6551611011 in words is "six billion, five hundred fifty-one million, six hundred eleven thousand, eleven".