1305220633336 has 16 divisors (see below), whose sum is σ = 2447309100600. Its totient is φ = 652604873184.

The previous prime is 1305220633309. The next prime is 1305220633357. The reversal of 1305220633336 is 6333360225031.

It is a junction number, because it is equal to n+sod(n) for n = 1305220633295 and 1305220633304.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 448866 + ... + 1676878.

Almost surely, 2^{1305220633336} is an apocalyptic number.

It is an amenable number.

1305220633336 is a deficient number, since it is larger than the sum of its proper divisors (1142088467264).

1305220633336 is a wasteful number, since it uses less digits than its factorization.

1305220633336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360878 (or 1360874 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 37.

Adding to 1305220633336 its reverse (6333360225031), we get a palindrome (7638580858367).

The spelling of 1305220633336 in words is "one trillion, three hundred five billion, two hundred twenty million, six hundred thirty-three thousand, three hundred thirty-six".