6662127271 has 4 divisors (see below), whose sum is σ = 6667916544. Its totient is φ = 6656338000.

The previous prime is 6662127253. The next prime is 6662127317. The reversal of 6662127271 is 1727212666.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1727212666 = 2 ⋅863606333.

It is a cyclic number.

It is not a de Polignac number, because 6662127271 - 2⁹ = 6662126759 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6662127211) 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, 2892910 + ... + 2895211.

It is an arithmetic number, because the mean of its divisors is an integer number (1666979136).

Almost surely, 2^6662127271 is an apocalyptic number.

6662127271 is a deficient number, since it is larger than the sum of its proper divisors (5789273).

6662127271 is a wasteful number, since it uses less digits than its factorization.

6662127271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5789272.

The product of its digits is 84672, while the sum is 40.

The square root of 6662127271 is about 81621.8553513702. The cubic root of 6662127271 is about 1881.6447872827.

The spelling of 6662127271 in words is "six billion, six hundred sixty-two million, one hundred twenty-seven thousand, two hundred seventy-one".