320064111457 has 2 divisors, whose sum is σ = 320064111458. Its totient is φ = 320064111456.

The previous prime is 320064111439. The next prime is 320064111481. The reversal of 320064111457 is 754111460023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 170820196416 + 149243915041 = 413304^2 + 386321^2 .

It is an emirp because it is prime and its reverse (754111460023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 320064111457 - 2¹⁵ = 320064078689 is a prime.

It is not a weakly prime, because it can be changed into another prime (320064118457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160032055728 + 160032055729.

It is an arithmetic number, because the mean of its divisors is an integer number (160032055729).

Almost surely, 2^320064111457 is an apocalyptic number.

It is an amenable number.

320064111457 is a deficient number, since it is larger than the sum of its proper divisors (1).

320064111457 is an equidigital number, since it uses as much as digits as its factorization.

320064111457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 320064111457 in words is "three hundred twenty billion, sixty-four million, one hundred eleven thousand, four hundred fifty-seven".