165130663 has 2 divisors, whose sum is σ = 165130664. Its totient is φ = 165130662.

The previous prime is 165130649. The next prime is 165130681. The reversal of 165130663 is 366031561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165130663 - 2²⁵ = 131576231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165131663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82565331 + 82565332.

It is an arithmetic number, because the mean of its divisors is an integer number (82565332).

Almost surely, 2^165130663 is an apocalyptic number.

165130663 is a deficient number, since it is larger than the sum of its proper divisors (1).

165130663 is an equidigital number, since it uses as much as digits as its factorization.

165130663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 165130663 is about 12850.3176225337. The cubic root of 165130663 is about 548.6253970994.

The spelling of 165130663 in words is "one hundred sixty-five million, one hundred thirty thousand, six hundred sixty-three".