5506658191 has 2 divisors, whose sum is σ = 5506658192. Its totient is φ = 5506658190.

The previous prime is 5506658189. The next prime is 5506658219. The reversal of 5506658191 is 1918566055.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5506658191 - 2¹ = 5506658189 is a prime.

Together with 5506658189, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5506658291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2753329095 + 2753329096.

It is an arithmetic number, because the mean of its divisors is an integer number (2753329096).

Almost surely, 2^5506658191 is an apocalyptic number.

5506658191 is a deficient number, since it is larger than the sum of its proper divisors (1).

5506658191 is an equidigital number, since it uses as much as digits as its factorization.

5506658191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324000, while the sum is 46.

The square root of 5506658191 is about 74206.8608081490. The cubic root of 5506658191 is about 1765.8861753811.

The spelling of 5506658191 in words is "five billion, five hundred six million, six hundred fifty-eight thousand, one hundred ninety-one".