6601847191 has 2 divisors, whose sum is σ = 6601847192. Its totient is φ = 6601847190.

The previous prime is 6601847149. The next prime is 6601847221. The reversal of 6601847191 is 1917481066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6601847191 - 2⁹ = 6601846679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6601847591) 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 as a sum of consecutive naturals, namely, 3300923595 + 3300923596.

It is an arithmetic number, because the mean of its divisors is an integer number (3300923596).

Almost surely, 2^6601847191 is an apocalyptic number.

6601847191 is a deficient number, since it is larger than the sum of its proper divisors (1).

6601847191 is an equidigital number, since it uses as much as digits as its factorization.

6601847191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 6601847191 is about 81251.7519257277. The cubic root of 6601847191 is about 1875.9524349645.

The spelling of 6601847191 in words is "six billion, six hundred one million, eight hundred forty-seven thousand, one hundred ninety-one".