164105563 has 2 divisors, whose sum is σ = 164105564. Its totient is φ = 164105562.

The previous prime is 164105561. The next prime is 164105567. The reversal of 164105563 is 365501461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 164105563 - 2¹ = 164105561 is a prime.

Together with 164105561, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (164105561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82052781 + 82052782.

It is an arithmetic number, because the mean of its divisors is an integer number (82052782).

Almost surely, 2^164105563 is an apocalyptic number.

164105563 is a deficient number, since it is larger than the sum of its proper divisors (1).

164105563 is an equidigital number, since it uses as much as digits as its factorization.

164105563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 164105563 is about 12810.3693545502. The cubic root of 164105563 is about 547.4877854979.

The spelling of 164105563 in words is "one hundred sixty-four million, one hundred five thousand, five hundred sixty-three".