13105344452553 has 12 divisors (see below), whose sum is σ = 19926254723440. Its totient is φ = 8277059654136.

The previous prime is 13105344452549. The next prime is 13105344452663. The reversal of 13105344452553 is 35525444350131.

13105344452553 is a `hidden beast` number, since 1 + 3 + 1 + 0 + 5 + 3 + 4 + 44 + 52 + 553 = 666.

It is not a de Polignac number, because 13105344452553 - 2² = 13105344452549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13105344452499 and 13105344452508.

It is not an unprimeable number, because it can be changed into a prime (13105344452503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38319720451 + ... + 38319720792.

Almost surely, 2^{13105344452553} is an apocalyptic number.

It is an amenable number.

13105344452553 is a deficient number, since it is larger than the sum of its proper divisors (6820910270887).

13105344452553 is a wasteful number, since it uses less digits than its factorization.

13105344452553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76639441268 (or 76639441265 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 45.

The spelling of 13105344452553 in words is "thirteen trillion, one hundred five billion, three hundred forty-four million, four hundred fifty-two thousand, five hundred fifty-three".