355521341424349 has 2 divisors, whose sum is σ = 355521341424350. Its totient is φ = 355521341424348.

The previous prime is 355521341424307. The next prime is 355521341424377. The reversal of 355521341424349 is 943424143125553.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 337234659602500 + 18286681821849 = 18363950^2 + 4276293^2 .

It is a cyclic number.

It is not a de Polignac number, because 355521341424349 - 2²³ = 355521333035741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 355521341424349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (355521341434349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177760670712174 + 177760670712175.

It is an arithmetic number, because the mean of its divisors is an integer number (177760670712175).

Almost surely, 2^{355521341424349} is an apocalyptic number.

It is an amenable number.

355521341424349 is a deficient number, since it is larger than the sum of its proper divisors (1).

355521341424349 is an equidigital number, since it uses as much as digits as its factorization.

355521341424349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104000, while the sum is 55.

The spelling of 355521341424349 in words is "three hundred fifty-five trillion, five hundred twenty-one billion, three hundred forty-one million, four hundred twenty-four thousand, three hundred forty-nine".