164245350610469 has 2 divisors, whose sum is σ = 164245350610470. Its totient is φ = 164245350610468.

The previous prime is 164245350610399. The next prime is 164245350610487. The reversal of 164245350610469 is 964016053542461.

It is a happy number.

164245350610469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155389637629444 + 8855712981025 = 12465538^2 + 2975855^2 .

It is a cyclic number.

It is not a de Polignac number, because 164245350610469 - 2³² = 164241055643173 is a prime.

It is a super-2 number, since 2×164245350610469² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164245350610499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82122675305234 + 82122675305235.

It is an arithmetic number, because the mean of its divisors is an integer number (82122675305235).

Almost surely, 2^{164245350610469} is an apocalyptic number.

It is an amenable number.

164245350610469 is a deficient number, since it is larger than the sum of its proper divisors (1).

164245350610469 is an equidigital number, since it uses as much as digits as its factorization.

164245350610469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18662400, while the sum is 56.

The spelling of 164245350610469 in words is "one hundred sixty-four trillion, two hundred forty-five billion, three hundred fifty million, six hundred ten thousand, four hundred sixty-nine".