164306254222465 has 4 divisors (see below), whose sum is σ = 197167505066964. Its totient is φ = 131445003377968.

The previous prime is 164306254222457. The next prime is 164306254222471. The reversal of 164306254222465 is 564222452603461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 121160917465344 + 43145336757121 = 11007312^2 + 6568511^2 .

It is a cyclic number.

It is not a de Polignac number, because 164306254222465 - 2³ = 164306254222457 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16430625422242 + ... + 16430625422251.

It is an arithmetic number, because the mean of its divisors is an integer number (49291876266741).

Almost surely, 2^{164306254222465} is an apocalyptic number.

It is an amenable number.

164306254222465 is a deficient number, since it is larger than the sum of its proper divisors (32861250844499).

164306254222465 is an equidigital number, since it uses as much as digits as its factorization.

164306254222465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32861250844498.

The product of its (nonzero) digits is 16588800, while the sum is 52.

The spelling of 164306254222465 in words is "one hundred sixty-four trillion, three hundred six billion, two hundred fifty-four million, two hundred twenty-two thousand, four hundred sixty-five".