165110623 has 2 divisors, whose sum is σ = 165110624. Its totient is φ = 165110622.

The previous prime is 165110609. The next prime is 165110639. The reversal of 165110623 is 326011561.

It is a weak prime.

It is an emirp because it is prime and its reverse (326011561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165110623 - 2⁹ = 165110111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165110663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82555311 + 82555312.

It is an arithmetic number, because the mean of its divisors is an integer number (82555312).

Almost surely, 2^165110623 is an apocalyptic number.

165110623 is a deficient number, since it is larger than the sum of its proper divisors (1).

165110623 is an equidigital number, since it uses as much as digits as its factorization.

165110623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 165110623 is about 12849.5378516116. The cubic root of 165110623 is about 548.6032027604.

The spelling of 165110623 in words is "one hundred sixty-five million, one hundred ten thousand, six hundred twenty-three".