165025631263 has 2 divisors, whose sum is σ = 165025631264. Its totient is φ = 165025631262.

The previous prime is 165025631201. The next prime is 165025631389. The reversal of 165025631263 is 362136520561.

165025631263 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 (362136520561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165025631263 - 2²⁵ = 164992076831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165025671263) 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, 82512815631 + 82512815632.

It is an arithmetic number, because the mean of its divisors is an integer number (82512815632).

Almost surely, 2^165025631263 is an apocalyptic number.

165025631263 is a deficient number, since it is larger than the sum of its proper divisors (1).

165025631263 is an equidigital number, since it uses as much as digits as its factorization.

165025631263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 165025631263 in words is "one hundred sixty-five billion, twenty-five million, six hundred thirty-one thousand, two hundred sixty-three".