13515655005547 has 2 divisors, whose sum is σ = 13515655005548. Its totient is φ = 13515655005546.

The previous prime is 13515655005499. The next prime is 13515655005617. The reversal of 13515655005547 is 74550055651531.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13515655005547 - 2¹⁵ = 13515654972779 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13515655005494 and 13515655005503.

It is not a weakly prime, because it can be changed into another prime (13515655006547) by changing a digit.

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 as a sum of consecutive naturals, namely, 6757827502773 + 6757827502774.

It is an arithmetic number, because the mean of its divisors is an integer number (6757827502774).

Almost surely, 2^{13515655005547} is an apocalyptic number.

13515655005547 is a deficient number, since it is larger than the sum of its proper divisors (1).

13515655005547 is an equidigital number, since it uses as much as digits as its factorization.

13515655005547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7875000, while the sum is 52.

The spelling of 13515655005547 in words is "thirteen trillion, five hundred fifteen billion, six hundred fifty-five million, five thousand, five hundred forty-seven".