1663348336 has 20 divisors (see below), whose sum is σ = 3470640712. Its totient is φ = 767699136.

The previous prime is 1663348301. The next prime is 1663348381. The reversal of 1663348336 is 6338433661.

It is a junction number, because it is equal to n+sod(n) for n = 1663348292 and 1663348301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3998226 + ... + 3998641.

Almost surely, 2^1663348336 is an apocalyptic number.

1663348336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1663348336 is an abundant number, since it is smaller than the sum of its proper divisors (1807292376).

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

1663348336 is a wasteful number, since it uses less digits than its factorization.

1663348336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7996888 (or 7996882 counting only the distinct ones).

The product of its digits is 559872, while the sum is 43.

The square root of 1663348336 is about 40784.1677124837. The cubic root of 1663348336 is about 1184.8437154951.

The spelling of 1663348336 in words is "one billion, six hundred sixty-three million, three hundred forty-eight thousand, three hundred thirty-six".