13244141155521 has 16 divisors (see below), whose sum is σ = 17919717580800. Its totient is φ = 8699462745168.

The previous prime is 13244141155517. The next prime is 13244141155529. The reversal of 13244141155521 is 12555114144231.

It is not a de Polignac number, because 13244141155521 - 2² = 13244141155517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13244141155521.

It is not an unprimeable number, because it can be changed into a prime (13244141155529) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 58218891 + ... + 58445936.

It is an arithmetic number, because the mean of its divisors is an integer number (1119982348800).

Almost surely, 2^{13244141155521} is an apocalyptic number.

It is an amenable number.

13244141155521 is a deficient number, since it is larger than the sum of its proper divisors (4675576425279).

13244141155521 is a wasteful number, since it uses less digits than its factorization.

13244141155521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116665388.

The product of its digits is 96000, while the sum is 39.

Adding to 13244141155521 its reverse (12555114144231), we get a palindrome (25799255299752).

The spelling of 13244141155521 in words is "thirteen trillion, two hundred forty-four billion, one hundred forty-one million, one hundred fifty-five thousand, five hundred twenty-one".