16872332544 has 108 divisors (see below), whose sum is σ = 49003099236. Its totient is φ = 5582954496.

The previous prime is 16872332513. The next prime is 16872332551. The reversal of 16872332544 is 44523327861.

16872332544 is a `hidden beast` number, since 1 + 6 + 8 + 72 + 3 + 32 + 544 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10064102400 + 6808230144 = 100320^2 + 82512^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16872332544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 288922 + ... + 342374.

Almost surely, 2^16872332544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16872332544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24501549618).

16872332544 is an abundant number, since it is smaller than the sum of its proper divisors (32130766692).

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

16872332544 is a wasteful number, since it uses less digits than its factorization.

16872332544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53612 (or 53595 counting only the distinct ones).

The product of its digits is 967680, while the sum is 45.

The spelling of 16872332544 in words is "sixteen billion, eight hundred seventy-two million, three hundred thirty-two thousand, five hundred forty-four".