13065855838547 has 4 divisors (see below), whose sum is σ = 13181482881480. Its totient is φ = 12950228795616.

The previous prime is 13065855838531. The next prime is 13065855838571. The reversal of 13065855838547 is 74583855856031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13065855838547 - 2⁴ = 13065855838531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13065855828547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57813521297 + ... + 57813521522.

It is an arithmetic number, because the mean of its divisors is an integer number (3295370720370).

Almost surely, 2^{13065855838547} is an apocalyptic number.

13065855838547 is a deficient number, since it is larger than the sum of its proper divisors (115627042933).

13065855838547 is a wasteful number, since it uses less digits than its factorization.

13065855838547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115627042932.

The product of its (nonzero) digits is 483840000, while the sum is 68.

The spelling of 13065855838547 in words is "thirteen trillion, sixty-five billion, eight hundred fifty-five million, eight hundred thirty-eight thousand, five hundred forty-seven".