6966422191 has 4 divisors (see below), whose sum is σ = 6967641384. Its totient is φ = 6965203000.

The previous prime is 6966422159. The next prime is 6966422249. The reversal of 6966422191 is 1912246696.

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 6966422191 - 2⁵ = 6966422159 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 (6966422291) 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, 600985 + ... + 612466.

It is an arithmetic number, because the mean of its divisors is an integer number (1741910346).

Almost surely, 2^6966422191 is an apocalyptic number.

6966422191 is a deficient number, since it is larger than the sum of its proper divisors (1219193).

6966422191 is a wasteful number, since it uses less digits than its factorization.

6966422191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219192.

The product of its digits is 279936, while the sum is 46.

The square root of 6966422191 is about 83465.0956448263. The cubic root of 6966422191 is about 1909.8676105893.

The spelling of 6966422191 in words is "six billion, nine hundred sixty-six million, four hundred twenty-two thousand, one hundred ninety-one".