320055542077 has 2 divisors, whose sum is σ = 320055542078. Its totient is φ = 320055542076.

The previous prime is 320055542057. The next prime is 320055542083. The reversal of 320055542077 is 770245550023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 177130715161 + 142924826916 = 420869^2 + 378054^2 .

It is an emirp because it is prime and its reverse (770245550023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 320055542077 - 2²³ = 320047153469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320055542057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160027771038 + 160027771039.

It is an arithmetic number, because the mean of its divisors is an integer number (160027771039).

Almost surely, 2^320055542077 is an apocalyptic number.

It is an amenable number.

320055542077 is a deficient number, since it is larger than the sum of its proper divisors (1).

320055542077 is an equidigital number, since it uses as much as digits as its factorization.

320055542077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 294000, while the sum is 40.

The spelling of 320055542077 in words is "three hundred twenty billion, fifty-five million, five hundred forty-two thousand, seventy-seven".