1663490982 has 16 divisors (see below), whose sum is σ = 3441705840. Its totient is φ = 535376352.

The previous prime is 1663490963. The next prime is 1663490989. The reversal of 1663490982 is 2890943661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1663490989) 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 in 7 ways as a sum of consecutive naturals, for example, 4779973 + ... + 4780320.

It is an arithmetic number, because the mean of its divisors is an integer number (215106615).

Almost surely, 2^1663490982 is an apocalyptic number.

1663490982 is an abundant number, since it is smaller than the sum of its proper divisors (1778214858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1663490982 is a wasteful number, since it uses less digits than its factorization.

1663490982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9560327.

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 1663490982 is about 40785.9164663490. The cubic root of 1663490982 is about 1184.8775846056.

The spelling of 1663490982 in words is "one billion, six hundred sixty-three million, four hundred ninety thousand, nine hundred eighty-two".