165382663 has 2 divisors, whose sum is σ = 165382664. Its totient is φ = 165382662.

The previous prime is 165382661. The next prime is 165382691. The reversal of 165382663 is 366283561.

165382663 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 165382663 - 2¹ = 165382661 is a prime.

Together with 165382661, 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 (165382661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82691331 + 82691332.

It is an arithmetic number, because the mean of its divisors is an integer number (82691332).

Almost surely, 2^165382663 is an apocalyptic number.

165382663 is a deficient number, since it is larger than the sum of its proper divisors (1).

165382663 is an equidigital number, since it uses as much as digits as its factorization.

165382663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 40.

The square root of 165382663 is about 12860.1190896508. The cubic root of 165382663 is about 548.9043344555.

The spelling of 165382663 in words is "one hundred sixty-five million, three hundred eighty-two thousand, six hundred sixty-three".