5506011661099 has 4 divisors (see below), whose sum is σ = 5506039416736. Its totient is φ = 5505983905464.

The previous prime is 5506011661091. The next prime is 5506011661109. The reversal of 5506011661099 is 9901661106055.

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

It is a cyclic number.

It is not a de Polignac number, because 5506011661099 - 2³ = 5506011661091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5506011661091) 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 3 ways as a sum of consecutive naturals, for example, 13578099 + ... + 13977724.

It is an arithmetic number, because the mean of its divisors is an integer number (1376509854184).

Almost surely, 2^{5506011661099} is an apocalyptic number.

5506011661099 is a deficient number, since it is larger than the sum of its proper divisors (27755637).

5506011661099 is a wasteful number, since it uses less digits than its factorization.

5506011661099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27755636.

The product of its (nonzero) digits is 437400, while the sum is 49.

The spelling of 5506011661099 in words is "five trillion, five hundred six billion, eleven million, six hundred sixty-one thousand, ninety-nine".