348305329443661 has 2 divisors, whose sum is σ = 348305329443662. Its totient is φ = 348305329443660.

The previous prime is 348305329443629. The next prime is 348305329443667. The reversal of 348305329443661 is 166344923503843.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 247549787701225 + 100755541742436 = 15733715^2 + 10037706^2 .

It is a cyclic number.

It is not a de Polignac number, because 348305329443661 - 2⁵ = 348305329443629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 348305329443661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (348305329443667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174152664721830 + 174152664721831.

It is an arithmetic number, because the mean of its divisors is an integer number (174152664721831).

Almost surely, 2^{348305329443661} is an apocalyptic number.

It is an amenable number.

348305329443661 is a deficient number, since it is larger than the sum of its proper divisors (1).

348305329443661 is an equidigital number, since it uses as much as digits as its factorization.

348305329443661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 134369280, while the sum is 61.

Subtracting from 348305329443661 its sum of digits (61), we obtain a square (348305329443600 = 18662940²).

The spelling of 348305329443661 in words is "three hundred forty-eight trillion, three hundred five billion, three hundred twenty-nine million, four hundred forty-three thousand, six hundred sixty-one".