2066597317 has 2 divisors, whose sum is σ = 2066597318. Its totient is φ = 2066597316.

The previous prime is 2066597279. The next prime is 2066597363. The reversal of 2066597317 is 7137956602.

It is an a-pointer prime, because the next prime (2066597363) can be obtained adding 2066597317 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1958416516 + 108180801 = 44254^2 + 10401^2 .

It is a cyclic number.

It is not a de Polignac number, because 2066597317 - 2²³ = 2058208709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2066597387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1033298658 + 1033298659.

It is an arithmetic number, because the mean of its divisors is an integer number (1033298659).

Almost surely, 2^2066597317 is an apocalyptic number.

It is an amenable number.

2066597317 is a deficient number, since it is larger than the sum of its proper divisors (1).

2066597317 is an equidigital number, since it uses as much as digits as its factorization.

2066597317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 476280, while the sum is 46.

The square root of 2066597317 is about 45459.8429055799. The cubic root of 2066597317 is about 1273.7531970593.

The spelling of 2066597317 in words is "two billion, sixty-six million, five hundred ninety-seven thousand, three hundred seventeen".