164323665619 has 2 divisors, whose sum is σ = 164323665620. Its totient is φ = 164323665618.

The previous prime is 164323665607. The next prime is 164323665631. The reversal of 164323665619 is 916566323461.

It is a balanced prime because it is at equal distance from previous prime (164323665607) and next prime (164323665631).

It is a cyclic number.

It is not a de Polignac number, because 164323665619 - 2¹³ = 164323657427 is a prime.

It is a super-2 number, since 2×164323665619² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (164323665689) 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, 82161832809 + 82161832810.

It is an arithmetic number, because the mean of its divisors is an integer number (82161832810).

Almost surely, 2^164323665619 is an apocalyptic number.

164323665619 is a deficient number, since it is larger than the sum of its proper divisors (1).

164323665619 is an equidigital number, since it uses as much as digits as its factorization.

164323665619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4199040, while the sum is 52.

The spelling of 164323665619 in words is "one hundred sixty-four billion, three hundred twenty-three million, six hundred sixty-five thousand, six hundred nineteen".