11456665369 has 2 divisors, whose sum is σ = 11456665370. Its totient is φ = 11456665368.

The previous prime is 11456665351. The next prime is 11456665411. The reversal of 11456665369 is 96356665411.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9369272025 + 2087393344 = 96795^2 + 45688^2 .

It is a cyclic number.

It is not a de Polignac number, because 11456665369 - 2¹¹ = 11456663321 is a prime.

It is a super-2 number, since 2×11456665369² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11456665349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5728332684 + 5728332685.

It is an arithmetic number, because the mean of its divisors is an integer number (5728332685).

Almost surely, 2^11456665369 is an apocalyptic number.

It is an amenable number.

11456665369 is a deficient number, since it is larger than the sum of its proper divisors (1).

11456665369 is an equidigital number, since it uses as much as digits as its factorization.

11456665369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3499200, while the sum is 52.

The spelling of 11456665369 in words is "eleven billion, four hundred fifty-six million, six hundred sixty-five thousand, three hundred sixty-nine".