16489986072 has 96 divisors (see below), whose sum is σ = 48003188400. Its totient is φ = 4706747136.

The previous prime is 16489986053. The next prime is 16489986083. The reversal of 16489986072 is 27068998461.

It is a junction number, because it is equal to n+sod(n) for n = 16489985997 and 16489986015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1278954 + ... + 1291782.

Almost surely, 2^16489986072 is an apocalyptic number.

16489986072 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 16489986072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24001594200).

16489986072 is an abundant number, since it is smaller than the sum of its proper divisors (31513202328).

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

16489986072 is a wasteful number, since it uses less digits than its factorization.

16489986072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13945 (or 13934 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 60.

The spelling of 16489986072 in words is "sixteen billion, four hundred eighty-nine million, nine hundred eighty-six thousand, seventy-two".