1665433311119 has 2 divisors, whose sum is σ = 1665433311120. Its totient is φ = 1665433311118.

The previous prime is 1665433311109. The next prime is 1665433311127. The reversal of 1665433311119 is 9111133345661.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1665433311119 is a prime.

It is a super-2 number, since 2×1665433311119² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1665433311119.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1665433311109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 832716655559 + 832716655560.

It is an arithmetic number, because the mean of its divisors is an integer number (832716655560).

Almost surely, 2^{1665433311119} is an apocalyptic number.

1665433311119 is a deficient number, since it is larger than the sum of its proper divisors (1).

1665433311119 is an equidigital number, since it uses as much as digits as its factorization.

1665433311119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 44.

The spelling of 1665433311119 in words is "one trillion, six hundred sixty-five billion, four hundred thirty-three million, three hundred eleven thousand, one hundred nineteen".