344003613053561 has 2 divisors, whose sum is σ = 344003613053562. Its totient is φ = 344003613053560.

The previous prime is 344003613053509. The next prime is 344003613053651. The reversal of 344003613053561 is 165350316300443.

It is a happy number.

Together with next prime (344003613053651) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 339533691073600 + 4469921979961 = 18426440^2 + 2114219^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344003613053561 is a prime.

It is not a weakly prime, because it can be changed into another prime (344003613055561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172001806526780 + 172001806526781.

It is an arithmetic number, because the mean of its divisors is an integer number (172001806526781).

Almost surely, 2^{344003613053561} is an apocalyptic number.

It is an amenable number.

344003613053561 is a deficient number, since it is larger than the sum of its proper divisors (1).

344003613053561 is an equidigital number, since it uses as much as digits as its factorization.

344003613053561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1166400, while the sum is 44.

The spelling of 344003613053561 in words is "three hundred forty-four trillion, three billion, six hundred thirteen million, fifty-three thousand, five hundred sixty-one".