6671346591 has 16 divisors (see below), whose sum is σ = 10947851264. Its totient is φ = 3518951904.

The previous prime is 6671346571. The next prime is 6671346623. The reversal of 6671346591 is 1956431766.

It is not a de Polignac number, because 6671346591 - 2⁵ = 6671346559 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 6671346591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6671346541) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 12218311 + ... + 12218856.

It is an arithmetic number, because the mean of its divisors is an integer number (684240704).

Almost surely, 2^6671346591 is an apocalyptic number.

6671346591 is a deficient number, since it is larger than the sum of its proper divisors (4276504673).

6671346591 is a wasteful number, since it uses less digits than its factorization.

6671346591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24437190.

The product of its digits is 816480, while the sum is 48.

The square root of 6671346591 is about 81678.3116316688. The cubic root of 6671346591 is about 1882.5123524918.

The spelling of 6671346591 in words is "six billion, six hundred seventy-one million, three hundred forty-six thousand, five hundred ninety-one".