320977133563 has 2 divisors, whose sum is σ = 320977133564. Its totient is φ = 320977133562.

The previous prime is 320977133539. The next prime is 320977133597. The reversal of 320977133563 is 365331779023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320977133563 - 2¹⁷ = 320977002491 is a prime.

It is not a weakly prime, because it can be changed into another prime (320977134563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160488566781 + 160488566782.

It is an arithmetic number, because the mean of its divisors is an integer number (160488566782).

Almost surely, 2^320977133563 is an apocalyptic number.

320977133563 is a deficient number, since it is larger than the sum of its proper divisors (1).

320977133563 is an equidigital number, since it uses as much as digits as its factorization.

320977133563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2143260, while the sum is 49.

The spelling of 320977133563 in words is "three hundred twenty billion, nine hundred seventy-seven million, one hundred thirty-three thousand, five hundred sixty-three".