13155177689 has 2 divisors, whose sum is σ = 13155177690. Its totient is φ = 13155177688.

The previous prime is 13155177599. The next prime is 13155177709. The reversal of 13155177689 is 98677155131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7970025625 + 5185152064 = 89275^2 + 72008^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13155177689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13155177689.

It is not a weakly prime, because it can be changed into another prime (13155176689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6577588844 + 6577588845.

It is an arithmetic number, because the mean of its divisors is an integer number (6577588845).

Almost surely, 2^13155177689 is an apocalyptic number.

It is an amenable number.

13155177689 is a deficient number, since it is larger than the sum of its proper divisors (1).

13155177689 is an equidigital number, since it uses as much as digits as its factorization.

13155177689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1587600, while the sum is 53.

The spelling of 13155177689 in words is "thirteen billion, one hundred fifty-five million, one hundred seventy-seven thousand, six hundred eighty-nine".