320485803643 has 2 divisors, whose sum is σ = 320485803644. Its totient is φ = 320485803642.

The previous prime is 320485803637. The next prime is 320485803707. The reversal of 320485803643 is 346308584023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320485803643 - 2⁵ = 320485803611 is a prime.

It is a super-2 number, since 2×320485803643² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320485803593 and 320485803602.

It is not a weakly prime, because it can be changed into another prime (320485603643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160242901821 + 160242901822.

It is an arithmetic number, because the mean of its divisors is an integer number (160242901822).

Almost surely, 2^320485803643 is an apocalyptic number.

320485803643 is a deficient number, since it is larger than the sum of its proper divisors (1).

320485803643 is an equidigital number, since it uses as much as digits as its factorization.

320485803643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1658880, while the sum is 46.

The spelling of 320485803643 in words is "three hundred twenty billion, four hundred eighty-five million, eight hundred three thousand, six hundred forty-three".