16680063672 has 160 divisors (see below), whose sum is σ = 52072059600. Its totient is φ = 4957479936.

The previous prime is 16680063623. The next prime is 16680063733. The reversal of 16680063672 is 27636008661.

16680063672 is a `hidden beast` number, since 1 + 6 + 6 + 8 + 0 + 0 + 636 + 7 + 2 = 666.

16680063672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 169458 + ... + 249150.

Almost surely, 2^16680063672 is an apocalyptic number.

16680063672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16680063672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26036029800).

16680063672 is an abundant number, since it is smaller than the sum of its proper divisors (35391995928).

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

16680063672 is a wasteful number, since it uses less digits than its factorization.

16680063672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79747 (or 79734 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 16680063672 in words is "sixteen billion, six hundred eighty million, sixty-three thousand, six hundred seventy-two".