163545006664331 has 4 divisors (see below), whose sum is σ = 163545845839872. Its totient is φ = 163544167488792.

The previous prime is 163545006664321. The next prime is 163545006664343. The reversal of 163545006664331 is 133466600545361.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163545006664331 is a prime.

It is a super-3 number, since 3×163545006664331³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163545006664321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419295371 + ... + 419685236.

It is an arithmetic number, because the mean of its divisors is an integer number (40886461459968).

Almost surely, 2^{163545006664331} is an apocalyptic number.

163545006664331 is a deficient number, since it is larger than the sum of its proper divisors (839175541).

163545006664331 is an equidigital number, since it uses as much as digits as its factorization.

163545006664331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839175540.

The product of its (nonzero) digits is 13996800, while the sum is 53.

The spelling of 163545006664331 in words is "one hundred sixty-three trillion, five hundred forty-five billion, six million, six hundred sixty-four thousand, three hundred thirty-one".