13198703621056 has 56 divisors (see below), whose sum is σ = 27137092375440. Its totient is φ = 6364167892992.

The previous prime is 13198703621021. The next prime is 13198703621057. The reversal of 13198703621056 is 65012630789131.

It is a junction number, because it is equal to n+sod(n) for n = 13198703620994 and 13198703621012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13198703621057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24395146 + ... + 24930313.

Almost surely, 2^{13198703621056} is an apocalyptic number.

13198703621056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13198703621056 is an abundant number, since it is smaller than the sum of its proper divisors (13938388754384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13198703621056 is a wasteful number, since it uses less digits than its factorization.

13198703621056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49325621 (or 49325611 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 13198703621056 in words is "thirteen trillion, one hundred ninety-eight billion, seven hundred three million, six hundred twenty-one thousand, fifty-six".