15505342443343 has 2 divisors, whose sum is σ = 15505342443344. Its totient is φ = 15505342443342.

The previous prime is 15505342443341. The next prime is 15505342443439. The reversal of 15505342443343 is 34334424350551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15505342443343 - 2¹ = 15505342443341 is a prime.

Together with 15505342443341, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 15505342443293 and 15505342443302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15505342443341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7752671221671 + 7752671221672.

It is an arithmetic number, because the mean of its divisors is an integer number (7752671221672).

Almost surely, 2^{15505342443343} is an apocalyptic number.

15505342443343 is a deficient number, since it is larger than the sum of its proper divisors (1).

15505342443343 is an equidigital number, since it uses as much as digits as its factorization.

15505342443343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184000, while the sum is 46.

Adding to 15505342443343 its reverse (34334424350551), we get a palindrome (49839766793894).

The spelling of 15505342443343 in words is "fifteen trillion, five hundred five billion, three hundred forty-two million, four hundred forty-three thousand, three hundred forty-three".