1966330903 has 2 divisors, whose sum is σ = 1966330904. Its totient is φ = 1966330902.

The previous prime is 1966330879. The next prime is 1966330907. The reversal of 1966330903 is 3090336691.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1966330903 - 2⁹ = 1966330391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1966330907) 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, 983165451 + 983165452.

It is an arithmetic number, because the mean of its divisors is an integer number (983165452).

Almost surely, 2^1966330903 is an apocalyptic number.

1966330903 is a deficient number, since it is larger than the sum of its proper divisors (1).

1966330903 is an equidigital number, since it uses as much as digits as its factorization.

1966330903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78732, while the sum is 40.

The square root of 1966330903 is about 44343.3298591795. The cubic root of 1966330903 is about 1252.8109334908.

The spelling of 1966330903 in words is "one billion, nine hundred sixty-six million, three hundred thirty thousand, nine hundred three".