191162322271 has 4 divisors (see below), whose sum is σ = 192854024352. Its totient is φ = 189470620192.

The previous prime is 191162322227. The next prime is 191162322349. The reversal of 191162322271 is 172223261191.

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 191162322271 - 2³⁷ = 53723368799 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 191162322271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191162322971) 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, 845850871 + ... + 845851096.

It is an arithmetic number, because the mean of its divisors is an integer number (48213506088).

Almost surely, 2^191162322271 is an apocalyptic number.

191162322271 is a deficient number, since it is larger than the sum of its proper divisors (1691702081).

191162322271 is a wasteful number, since it uses less digits than its factorization.

191162322271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691702080.

The product of its digits is 18144, while the sum is 37.

The spelling of 191162322271 in words is "one hundred ninety-one billion, one hundred sixty-two million, three hundred twenty-two thousand, two hundred seventy-one".