205851264167 has 2 divisors, whose sum is σ = 205851264168. Its totient is φ = 205851264166.

The previous prime is 205851264127. The next prime is 205851264169. The reversal of 205851264167 is 761462158502.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205851264167 is a prime.

Together with 205851264169, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205851264169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102925632083 + 102925632084.

It is an arithmetic number, because the mean of its divisors is an integer number (102925632084).

Almost surely, 2^205851264167 is an apocalyptic number.

205851264167 is a deficient number, since it is larger than the sum of its proper divisors (1).

205851264167 is an equidigital number, since it uses as much as digits as its factorization.

205851264167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 205851264167 in words is "two hundred five billion, eight hundred fifty-one million, two hundred sixty-four thousand, one hundred sixty-seven".