6686170211 has 16 divisors (see below), whose sum is σ = 7852403904. Its totient is φ = 5572882944.

The previous prime is 6686170201. The next prime is 6686170213. The reversal of 6686170211 is 1120716866.

It is a cyclic number.

It is not a de Polignac number, because 6686170211 - 2¹⁸ = 6685908067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6686170213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 509711 + ... + 522663.

It is an arithmetic number, because the mean of its divisors is an integer number (490775244).

Almost surely, 2^6686170211 is an apocalyptic number.

6686170211 is a deficient number, since it is larger than the sum of its proper divisors (1166233693).

6686170211 is a wasteful number, since it uses less digits than its factorization.

6686170211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14990.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 6686170211 is about 81769.0051975686. The cubic root of 6686170211 is about 1883.9056246610.

The spelling of 6686170211 in words is "six billion, six hundred eighty-six million, one hundred seventy thousand, two hundred eleven".