6605340671 has 4 divisors (see below), whose sum is σ = 6952990200. Its totient is φ = 6257691144.

The previous prime is 6605340647. The next prime is 6605340689. The reversal of 6605340671 is 1760435066.

It is a happy number.

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 6605340671 - 2⁶ = 6605340607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6605340601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173824736 + ... + 173824773.

It is an arithmetic number, because the mean of its divisors is an integer number (1738247550).

Almost surely, 2^6605340671 is an apocalyptic number.

6605340671 is a deficient number, since it is larger than the sum of its proper divisors (347649529).

6605340671 is a wasteful number, since it uses less digits than its factorization.

6605340671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347649528.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 6605340671 is about 81273.2469574091. The cubic root of 6605340671 is about 1876.2832740201.

The spelling of 6605340671 in words is "six billion, six hundred five million, three hundred forty thousand, six hundred seventy-one".