16663568423486 has 8 divisors (see below), whose sum is σ = 24995389949424. Its totient is φ = 8331771773680.

The previous prime is 16663568423479. The next prime is 16663568423501. The reversal of 16663568423486 is 68432486536661.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 4442930 + ... + 7284693.

It is an arithmetic number, because the mean of its divisors is an integer number (3124423743678).

Almost surely, 2^{16663568423486} is an apocalyptic number.

16663568423486 is a deficient number, since it is larger than the sum of its proper divisors (8331821525938).

16663568423486 is a wasteful number, since it uses less digits than its factorization.

16663568423486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12438066.

The product of its digits is 716636160, while the sum is 68.

The spelling of 16663568423486 in words is "sixteen trillion, six hundred sixty-three billion, five hundred sixty-eight million, four hundred twenty-three thousand, four hundred eighty-six".