5505350661 has 12 divisors (see below), whose sum is σ = 7953779392. Its totient is φ = 3669492456.

The previous prime is 5505350647. The next prime is 5505350689. The reversal of 5505350661 is 1660535055.

5505350661 is a `hidden beast` number, since 550 + 53 + 50 + 6 + 6 + 1 = 666.

It is not a de Polignac number, because 5505350661 - 2⁵ = 5505350629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5505350611) 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 11 ways as a sum of consecutive naturals, for example, 12691 + ... + 105696.

Almost surely, 2^5505350661 is an apocalyptic number.

It is an amenable number.

5505350661 is a deficient number, since it is larger than the sum of its proper divisors (2448428731).

5505350661 is a wasteful number, since it uses less digits than its factorization.

5505350661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123560 (or 123557 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

The square root of 5505350661 is about 74198.0502506636. The cubic root of 5505350661 is about 1765.7463972044.

The spelling of 5505350661 in words is "five billion, five hundred five million, three hundred fifty thousand, six hundred sixty-one".