320344606641603 has 4 divisors (see below), whose sum is σ = 427126142188808. Its totient is φ = 213563071094400.

The previous prime is 320344606641551. The next prime is 320344606641613. The reversal of 320344606641603 is 306146606443023.

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

It is not a de Polignac number, because 320344606641603 - 2¹⁷ = 320344606510531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320344606641613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53390767773598 + ... + 53390767773603.

It is an arithmetic number, because the mean of its divisors is an integer number (106781535547202).

Almost surely, 2^{320344606641603} is an apocalyptic number.

320344606641603 is a deficient number, since it is larger than the sum of its proper divisors (106781535547205).

320344606641603 is a wasteful number, since it uses less digits than its factorization.

320344606641603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106781535547204.

The product of its (nonzero) digits is 4478976, while the sum is 48.

The spelling of 320344606641603 in words is "three hundred twenty trillion, three hundred forty-four billion, six hundred six million, six hundred forty-one thousand, six hundred three".