1663806119424 has 80 divisors (see below), whose sum is σ = 4535564681472. Its totient is φ = 541704296448.

The previous prime is 1663806119411. The next prime is 1663806119471. The reversal of 1663806119424 is 4249116083661.

It is a happy number.

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, 12529384 + ... + 12661479.

Almost surely, 2^{1663806119424} is an apocalyptic number.

It is an amenable number.

1663806119424 is an abundant number, since it is smaller than the sum of its proper divisors (2871758562048).

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

1663806119424 is an equidigital number, since it uses as much as digits as its factorization.

1663806119424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25190927 (or 25190911 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 51.

The spelling of 1663806119424 in words is "one trillion, six hundred sixty-three billion, eight hundred six million, one hundred nineteen thousand, four hundred twenty-four".