1663209382 has 16 divisors (see below), whose sum is σ = 2651119200. Its totient is φ = 779856768.

The previous prime is 1663209337. The next prime is 1663209409. The reversal of 1663209382 is 2839023661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78882 + ... + 97717.

It is an arithmetic number, because the mean of its divisors is an integer number (165694950).

Almost surely, 2^1663209382 is an apocalyptic number.

1663209382 is a deficient number, since it is larger than the sum of its proper divisors (987909818).

1663209382 is a wasteful number, since it uses less digits than its factorization.

1663209382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176895.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 1663209382 is about 40782.4641482096. The cubic root of 1663209382 is about 1184.8107211317.

The spelling of 1663209382 in words is "one billion, six hundred sixty-three million, two hundred nine thousand, three hundred eighty-two".