165535654464463 has 2 divisors, whose sum is σ = 165535654464464. Its totient is φ = 165535654464462.

The previous prime is 165535654464461. The next prime is 165535654464491. The reversal of 165535654464463 is 364464456535561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165535654464463 - 2¹ = 165535654464461 is a prime.

Together with 165535654464461, 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 (165535654464461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82767827232231 + 82767827232232.

It is an arithmetic number, because the mean of its divisors is an integer number (82767827232232).

Almost surely, 2^{165535654464463} is an apocalyptic number.

165535654464463 is a deficient number, since it is larger than the sum of its proper divisors (1).

165535654464463 is an equidigital number, since it uses as much as digits as its factorization.

165535654464463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240000, while the sum is 67.

The spelling of 165535654464463 in words is "one hundred sixty-five trillion, five hundred thirty-five billion, six hundred fifty-four million, four hundred sixty-four thousand, four hundred sixty-three".