1066277766289 has 2 divisors, whose sum is σ = 1066277766290. Its totient is φ = 1066277766288.

The previous prime is 1066277766271. The next prime is 1066277766319. The reversal of 1066277766289 is 9826677726601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 986476036225 + 79801730064 = 993215^2 + 282492^2 .

It is a cyclic number.

It is not a de Polignac number, because 1066277766289 - 2¹³ = 1066277758097 is a prime.

It is a super-2 number, since 2×1066277766289² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1066277766089) 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 as a sum of consecutive naturals, namely, 533138883144 + 533138883145.

It is an arithmetic number, because the mean of its divisors is an integer number (533138883145).

Almost surely, 2^{1066277766289} is an apocalyptic number.

It is an amenable number.

1066277766289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066277766289 is an equidigital number, since it uses as much as digits as its factorization.

1066277766289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128024064, while the sum is 67.

The spelling of 1066277766289 in words is "one trillion, sixty-six billion, two hundred seventy-seven million, seven hundred sixty-six thousand, two hundred eighty-nine".