1066845512471 has 2 divisors, whose sum is σ = 1066845512472. Its totient is φ = 1066845512470.

The previous prime is 1066845512461. The next prime is 1066845512531. The reversal of 1066845512471 is 1742155486601.

It is a weak prime.

It is an emirp because it is prime and its reverse (1742155486601) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1066845512471 is a prime.

It is a super-3 number, since 3×1066845512471³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1066845512461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533422756235 + 533422756236.

It is an arithmetic number, because the mean of its divisors is an integer number (533422756236).

Almost surely, 2^{1066845512471} is an apocalyptic number.

1066845512471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066845512471 is an equidigital number, since it uses as much as digits as its factorization.

1066845512471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1612800, while the sum is 50.

The spelling of 1066845512471 in words is "one trillion, sixty-six billion, eight hundred forty-five million, five hundred twelve thousand, four hundred seventy-one".