2066957047489 has 2 divisors, whose sum is σ = 2066957047490. Its totient is φ = 2066957047488.

The previous prime is 2066957047483. The next prime is 2066957047511. The reversal of 2066957047489 is 9847407596602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1940072908225 + 126884139264 = 1392865^2 + 356208^2 .

It is a cyclic number.

It is not a de Polignac number, because 2066957047489 - 2³ = 2066957047481 is a prime.

It is a super-2 number, since 2×2066957047489² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2066957047481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1033478523744 + 1033478523745.

It is an arithmetic number, because the mean of its divisors is an integer number (1033478523745).

Almost surely, 2^{2066957047489} is an apocalyptic number.

It is an amenable number.

2066957047489 is a deficient number, since it is larger than the sum of its proper divisors (1).

2066957047489 is an equidigital number, since it uses as much as digits as its factorization.

2066957047489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 182891520, while the sum is 67.

The spelling of 2066957047489 in words is "two trillion, sixty-six billion, nine hundred fifty-seven million, forty-seven thousand, four hundred eighty-nine".