1663016273 has 2 divisors, whose sum is σ = 1663016274. Its totient is φ = 1663016272.

The previous prime is 1663016239. The next prime is 1663016291. The reversal of 1663016273 is 3726103661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1640898064 + 22118209 = 40508^2 + 4703^2 .

It is a cyclic number.

It is not a de Polignac number, because 1663016273 - 2³⁰ = 589274449 is a prime.

It is not a weakly prime, because it can be changed into another prime (1663010273) 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, 831508136 + 831508137.

It is an arithmetic number, because the mean of its divisors is an integer number (831508137).

Almost surely, 2^1663016273 is an apocalyptic number.

It is an amenable number.

1663016273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1663016273 is an equidigital number, since it uses as much as digits as its factorization.

1663016273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 1663016273 is about 40780.0965300476. The cubic root of 1663016273 is about 1184.7648647147.

The spelling of 1663016273 in words is "one billion, six hundred sixty-three million, sixteen thousand, two hundred seventy-three".