1066889064449 has 8 divisors (see below), whose sum is σ = 1198912126272. Its totient is φ = 942002384400.

The previous prime is 1066889064389. The next prime is 1066889064473. The reversal of 1066889064449 is 9444609886601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1066889064449 - 2¹⁶ = 1066888998913 is a prime.

It is a super-2 number, since 2×1066889064449² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066889064749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1784095127 + ... + 1784095724.

It is an arithmetic number, because the mean of its divisors is an integer number (149864015784).

Almost surely, 2^{1066889064449} is an apocalyptic number.

It is an amenable number.

1066889064449 is a deficient number, since it is larger than the sum of its proper divisors (132023061823).

1066889064449 is a wasteful number, since it uses less digits than its factorization.

1066889064449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3568190887.

The product of its (nonzero) digits is 71663616, while the sum is 65.

The spelling of 1066889064449 in words is "one trillion, sixty-six billion, eight hundred eighty-nine million, sixty-four thousand, four hundred forty-nine".