664060123 has 2 divisors, whose sum is σ = 664060124. Its totient is φ = 664060122.

The previous prime is 664060121. The next prime is 664060141. The reversal of 664060123 is 321060466.

664060123 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 664060123 - 2¹ = 664060121 is a prime.

Together with 664060121, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 664060091 and 664060100.

It is not a weakly prime, because it can be changed into another prime (664060121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332030061 + 332030062.

It is an arithmetic number, because the mean of its divisors is an integer number (332030062).

Almost surely, 2^664060123 is an apocalyptic number.

664060123 is a deficient number, since it is larger than the sum of its proper divisors (1).

664060123 is an equidigital number, since it uses as much as digits as its factorization.

664060123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 664060123 is about 25769.3640394946. The cubic root of 664060123 is about 872.4404648994.

The spelling of 664060123 in words is "six hundred sixty-four million, sixty thousand, one hundred twenty-three".