13220350343505 has 32 divisors (see below), whose sum is σ = 24885365356800. Its totient is φ = 6636097426176.

The previous prime is 13220350343491. The next prime is 13220350343521. The reversal of 13220350343505 is 50534305302231.

13220350343505 is a `hidden beast` number, since 1 + 3 + 220 + 3 + 50 + 34 + 350 + 5 = 666.

It is not a de Polignac number, because 13220350343505 - 2¹⁵ = 13220350310737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13220350343505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2880248325 + ... + 2880252914.

It is an arithmetic number, because the mean of its divisors is an integer number (777667667400).

Almost surely, 2^{13220350343505} is an apocalyptic number.

13220350343505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13220350343505 is a deficient number, since it is larger than the sum of its proper divisors (11665015013295).

13220350343505 is a wasteful number, since it uses less digits than its factorization.

13220350343505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5760501270 (or 5760501264 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 36.

Adding to 13220350343505 its reverse (50534305302231), we get a palindrome (63754655645736).

The spelling of 13220350343505 in words is "thirteen trillion, two hundred twenty billion, three hundred fifty million, three hundred forty-three thousand, five hundred five".