13550980659 has 4 divisors (see below), whose sum is σ = 18067974216. Its totient is φ = 9033987104.

The previous prime is 13550980649. The next prime is 13550980661. The reversal of 13550980659 is 95608905531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95608905531 = 3 ⋅31869635177.

It is a cyclic number.

It is not a de Polignac number, because 13550980659 - 2²⁰ = 13549932083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13550980649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2258496774 + ... + 2258496779.

It is an arithmetic number, because the mean of its divisors is an integer number (4516993554).

Almost surely, 2^13550980659 is an apocalyptic number.

13550980659 is a deficient number, since it is larger than the sum of its proper divisors (4516993557).

13550980659 is an equidigital number, since it uses as much as digits as its factorization.

13550980659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4516993556.

The product of its (nonzero) digits is 1458000, while the sum is 51.

The spelling of 13550980659 in words is "thirteen billion, five hundred fifty million, nine hundred eighty thousand, six hundred fifty-nine".