164240616423245 has 4 divisors (see below), whose sum is σ = 197088739707900. Its totient is φ = 131392493138592.

The previous prime is 164240616423229. The next prime is 164240616423283. The reversal of 164240616423245 is 542324616042461.

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 116557696923721 + 47682919499524 = 10796189^2 + 6905282^2 .

It is a cyclic number.

It is not a de Polignac number, because 164240616423245 - 2⁴ = 164240616423229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 164240616423193 and 164240616423202.

It is a congruent 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, 16424061642320 + ... + 16424061642329.

It is an arithmetic number, because the mean of its divisors is an integer number (49272184926975).

Almost surely, 2^{164240616423245} is an apocalyptic number.

It is an amenable number.

164240616423245 is a deficient number, since it is larger than the sum of its proper divisors (32848123284655).

164240616423245 is an equidigital number, since it uses as much as digits as its factorization.

164240616423245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32848123284654.

The product of its (nonzero) digits is 6635520, while the sum is 50.

The spelling of 164240616423245 in words is "one hundred sixty-four trillion, two hundred forty billion, six hundred sixteen million, four hundred twenty-three thousand, two hundred forty-five".