351816168359941 has 2 divisors, whose sum is σ = 351816168359942. Its totient is φ = 351816168359940.

The previous prime is 351816168359917. The next prime is 351816168359947. The reversal of 351816168359941 is 149953861618153.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 350122253094916 + 1693915265025 = 18711554^2 + 1301505^2 .

It is an emirp because it is prime and its reverse (149953861618153) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 351816168359941 - 2⁹ = 351816168359429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (351816168359947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175908084179970 + 175908084179971.

It is an arithmetic number, because the mean of its divisors is an integer number (175908084179971).

Almost surely, 2^{351816168359941} is an apocalyptic number.

It is an amenable number.

351816168359941 is a deficient number, since it is larger than the sum of its proper divisors (1).

351816168359941 is an equidigital number, since it uses as much as digits as its factorization.

351816168359941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 167961600, while the sum is 70.

The spelling of 351816168359941 in words is "three hundred fifty-one trillion, eight hundred sixteen billion, one hundred sixty-eight million, three hundred fifty-nine thousand, nine hundred forty-one".