16698744487446 has 128 divisors (see below), whose sum is σ = 38607162624000. Its totient is φ = 4716589409280.

The previous prime is 16698744487427. The next prime is 16698744487489. The reversal of 16698744487446 is 64478444789661.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1616054496 + ... + 1616064828.

It is an arithmetic number, because the mean of its divisors is an integer number (301618458000).

Almost surely, 2^{16698744487446} is an apocalyptic number.

16698744487446 is an abundant number, since it is smaller than the sum of its proper divisors (21908418136554).

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

16698744487446 is a wasteful number, since it uses less digits than its factorization.

16698744487446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11694.

The product of its digits is 6242697216, while the sum is 78.

The spelling of 16698744487446 in words is "sixteen trillion, six hundred ninety-eight billion, seven hundred forty-four million, four hundred eighty-seven thousand, four hundred forty-six".