206147327191 has 8 divisors (see below), whose sum is σ = 222307695680. Its totient is φ = 190030227552.

The previous prime is 206147327161. The next prime is 206147327219. The reversal of 206147327191 is 191723741602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 206147327191 - 2⁵ = 206147327159 is a prime.

It is the 454035-th Hogben 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 (206147327161) by changing a digit.

It is a nontrivial repunit in base 454034.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10807311 + ... + 10826368.

It is an arithmetic number, because the mean of its divisors is an integer number (27788461960).

Almost surely, 2^206147327191 is an apocalyptic number.

206147327191 is a deficient number, since it is larger than the sum of its proper divisors (16160368489).

206147327191 is a wasteful number, since it uses less digits than its factorization.

206147327191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21634425.

The product of its (nonzero) digits is 127008, while the sum is 43.

The spelling of 206147327191 in words is "two hundred six billion, one hundred forty-seven million, three hundred twenty-seven thousand, one hundred ninety-one".