13027552154561 has 4 divisors (see below), whose sum is σ = 14888631033792. Its totient is φ = 11166473275332.

The previous prime is 13027552154531. The next prime is 13027552154563. The reversal of 13027552154561 is 16545125572031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13027552154561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13027552154563) 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, 930539439605 + ... + 930539439618.

It is an arithmetic number, because the mean of its divisors is an integer number (3722157758448).

Almost surely, 2^{13027552154561} is an apocalyptic number.

It is an amenable number.

13027552154561 is a deficient number, since it is larger than the sum of its proper divisors (1861078879231).

13027552154561 is an equidigital number, since it uses as much as digits as its factorization.

13027552154561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861078879230.

The product of its (nonzero) digits is 1260000, while the sum is 47.

The spelling of 13027552154561 in words is "thirteen trillion, twenty-seven billion, five hundred fifty-two million, one hundred fifty-four thousand, five hundred sixty-one".