5511656065 has 4 divisors (see below), whose sum is σ = 6613987284. Its totient is φ = 4409324848.

The previous prime is 5511656057. The next prime is 5511656077. The reversal of 5511656065 is 5606561155.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3818251264 + 1693404801 = 61792^2 + 41151^2 .

It is a cyclic number.

It is not a de Polignac number, because 5511656065 - 2³ = 5511656057 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 551165602 + ... + 551165611.

It is an arithmetic number, because the mean of its divisors is an integer number (1653496821).

Almost surely, 2^5511656065 is an apocalyptic number.

It is an amenable number.

5511656065 is a deficient number, since it is larger than the sum of its proper divisors (1102331219).

5511656065 is a wasteful number, since it uses less digits than its factorization.

5511656065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102331218.

The product of its (nonzero) digits is 135000, while the sum is 40.

The square root of 5511656065 is about 74240.5284531300. The cubic root of 5511656065 is about 1766.4202565827.

The spelling of 5511656065 in words is "five billion, five hundred eleven million, six hundred fifty-six thousand, sixty-five".