13555332422077 has 2 divisors, whose sum is σ = 13555332422078. Its totient is φ = 13555332422076.

The previous prime is 13555332422069. The next prime is 13555332422111. The reversal of 13555332422077 is 77022423355531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7641846543321 + 5913485878756 = 2764389^2 + 2431766^2 .

It is a cyclic number.

It is not a de Polignac number, because 13555332422077 - 2³ = 13555332422069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13555332422077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13555332422377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6777666211038 + 6777666211039.

It is an arithmetic number, because the mean of its divisors is an integer number (6777666211039).

Almost surely, 2^{13555332422077} is an apocalyptic number.

It is an amenable number.

13555332422077 is a deficient number, since it is larger than the sum of its proper divisors (1).

13555332422077 is an equidigital number, since it uses as much as digits as its factorization.

13555332422077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292000, while the sum is 49.

The spelling of 13555332422077 in words is "thirteen trillion, five hundred fifty-five billion, three hundred thirty-two million, four hundred twenty-two thousand, seventy-seven".