168256164907 has 2 divisors, whose sum is σ = 168256164908. Its totient is φ = 168256164906.

The previous prime is 168256164889. The next prime is 168256164949. The reversal of 168256164907 is 709461652861.

168256164907 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 168256164907 - 2³⁵ = 133896426539 is a prime.

It is not a weakly prime, because it can be changed into another prime (168256164977) 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, 84128082453 + 84128082454.

It is an arithmetic number, because the mean of its divisors is an integer number (84128082454).

Almost surely, 2^168256164907 is an apocalyptic number.

168256164907 is a deficient number, since it is larger than the sum of its proper divisors (1).

168256164907 is an equidigital number, since it uses as much as digits as its factorization.

168256164907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 168256164907 in words is "one hundred sixty-eight billion, two hundred fifty-six million, one hundred sixty-four thousand, nine hundred seven".