2066895984997 has 2 divisors, whose sum is σ = 2066895984998. Its totient is φ = 2066895984996.

The previous prime is 2066895984949. The next prime is 2066895985019. The reversal of 2066895984997 is 7994895986602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1369335274596 + 697560710401 = 1170186^2 + 835201^2 .

It is a cyclic number.

It is not a de Polignac number, because 2066895984997 - 2¹⁹ = 2066895460709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2066895984997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2066895184997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1033447992498 + 1033447992499.

It is an arithmetic number, because the mean of its divisors is an integer number (1033447992499).

Almost surely, 2^{2066895984997} is an apocalyptic number.

It is an amenable number.

2066895984997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2066895984997 is an equidigital number, since it uses as much as digits as its factorization.

2066895984997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4232632320, while the sum is 82.

The spelling of 2066895984997 in words is "two trillion, sixty-six billion, eight hundred ninety-five million, nine hundred eighty-four thousand, nine hundred ninety-seven".