13551550069 has 2 divisors, whose sum is σ = 13551550070. Its totient is φ = 13551550068.

The previous prime is 13551550039. The next prime is 13551550073. The reversal of 13551550069 is 96005515531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10097637169 + 3453912900 = 100487^2 + 58770^2 .

It is a cyclic number.

It is not a de Polignac number, because 13551550069 - 2⁵ = 13551550037 is a prime.

It is a super-2 number, since 2×13551550069² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13551550039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6775775034 + 6775775035.

It is an arithmetic number, because the mean of its divisors is an integer number (6775775035).

Almost surely, 2^13551550069 is an apocalyptic number.

It is an amenable number.

13551550069 is a deficient number, since it is larger than the sum of its proper divisors (1).

13551550069 is an equidigital number, since it uses as much as digits as its factorization.

13551550069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 101250, while the sum is 40.

The spelling of 13551550069 in words is "thirteen billion, five hundred fifty-one million, five hundred fifty thousand, sixty-nine".