320214435557 has 2 divisors, whose sum is σ = 320214435558. Its totient is φ = 320214435556.

The previous prime is 320214435547. The next prime is 320214435589. The reversal of 320214435557 is 755534412023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191131598596 + 129082836961 = 437186^2 + 359281^2 .

It is a cyclic number.

It is not a de Polignac number, because 320214435557 - 2¹⁸ = 320214173413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320214435547) 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, 160107217778 + 160107217779.

It is an arithmetic number, because the mean of its divisors is an integer number (160107217779).

Almost surely, 2^320214435557 is an apocalyptic number.

It is an amenable number.

320214435557 is a deficient number, since it is larger than the sum of its proper divisors (1).

320214435557 is an equidigital number, since it uses as much as digits as its factorization.

320214435557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504000, while the sum is 41.

The spelling of 320214435557 in words is "three hundred twenty billion, two hundred fourteen million, four hundred thirty-five thousand, five hundred fifty-seven".