168857538151 has 2 divisors, whose sum is σ = 168857538152. Its totient is φ = 168857538150.

The previous prime is 168857538149. The next prime is 168857538167. The reversal of 168857538151 is 151835758861.

168857538151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 168857538151 - 2¹ = 168857538149 is a prime.

Together with 168857538149, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168857538251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84428769075 + 84428769076.

It is an arithmetic number, because the mean of its divisors is an integer number (84428769076).

Almost surely, 2^168857538151 is an apocalyptic number.

168857538151 is a deficient number, since it is larger than the sum of its proper divisors (1).

168857538151 is an equidigital number, since it uses as much as digits as its factorization.

168857538151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064000, while the sum is 58.

The spelling of 168857538151 in words is "one hundred sixty-eight billion, eight hundred fifty-seven million, five hundred thirty-eight thousand, one hundred fifty-one".