164155641263 has 2 divisors, whose sum is σ = 164155641264. Its totient is φ = 164155641262.

The previous prime is 164155641259. The next prime is 164155641323. The reversal of 164155641263 is 362146551461.

164155641263 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 an emirp because it is prime and its reverse (362146551461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164155641263 - 2² = 164155641259 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164155641163) 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, 82077820631 + 82077820632.

It is an arithmetic number, because the mean of its divisors is an integer number (82077820632).

Almost surely, 2^164155641263 is an apocalyptic number.

164155641263 is a deficient number, since it is larger than the sum of its proper divisors (1).

164155641263 is an equidigital number, since it uses as much as digits as its factorization.

164155641263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 518400, while the sum is 44.

The spelling of 164155641263 in words is "one hundred sixty-four billion, one hundred fifty-five million, six hundred forty-one thousand, two hundred sixty-three".