5611549665 has 64 divisors (see below), whose sum is σ = 9452298240. Its totient is φ = 2839549440.

The previous prime is 5611549651. The next prime is 5611549693. The reversal of 5611549665 is 5669451165.

5611549665 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5611549665 - 2²⁵ = 5577995233 is a prime.

It is a super-2 number, since 2×5611549665² = 62978979285523224450, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 11714896 + ... + 11715374.

It is an arithmetic number, because the mean of its divisors is an integer number (147692160).

Almost surely, 2^5611549665 is an apocalyptic number.

It is an amenable number.

5611549665 is a deficient number, since it is larger than the sum of its proper divisors (3840748575).

5611549665 is a wasteful number, since it uses less digits than its factorization.

5611549665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014.

The product of its digits is 972000, while the sum is 48.

The square root of 5611549665 is about 74910.2774324058. The cubic root of 5611549665 is about 1777.0279977394.

The spelling of 5611549665 in words is "five billion, six hundred eleven million, five hundred forty-nine thousand, six hundred sixty-five".