1466666813489 has 2 divisors, whose sum is σ = 1466666813490. Its totient is φ = 1466666813488.

The previous prime is 1466666813411. The next prime is 1466666813527. The reversal of 1466666813489 is 9843186666641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1383034800625 + 83632012864 = 1176025^2 + 289192^2 .

It is a cyclic number.

It is not a de Polignac number, because 1466666813489 - 2³² = 1462371846193 is a prime.

It is a super-2 number, since 2×1466666813489² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1466666819489) 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 as a sum of consecutive naturals, namely, 733333406744 + 733333406745.

It is an arithmetic number, because the mean of its divisors is an integer number (733333406745).

Almost surely, 2^{1466666813489} is an apocalyptic number.

It is an amenable number.

1466666813489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1466666813489 is an equidigital number, since it uses as much as digits as its factorization.

1466666813489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 214990848, while the sum is 68.

The spelling of 1466666813489 in words is "one trillion, four hundred sixty-six billion, six hundred sixty-six million, eight hundred thirteen thousand, four hundred eighty-nine".