1966458383 has 2 divisors, whose sum is σ = 1966458384. Its totient is φ = 1966458382.

The previous prime is 1966458367. The next prime is 1966458421. The reversal of 1966458383 is 3838546691.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1966458383 - 2⁴ = 1966458367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1966458313) 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, 983229191 + 983229192.

It is an arithmetic number, because the mean of its divisors is an integer number (983229192).

Almost surely, 2^1966458383 is an apocalyptic number.

1966458383 is a deficient number, since it is larger than the sum of its proper divisors (1).

1966458383 is an equidigital number, since it uses as much as digits as its factorization.

1966458383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3732480, while the sum is 53.

The square root of 1966458383 is about 44344.7672561262. The cubic root of 1966458383 is about 1252.8380067378.

The spelling of 1966458383 in words is "one billion, nine hundred sixty-six million, four hundred fifty-eight thousand, three hundred eighty-three".