16650432 has 84 divisors (see below), whose sum is σ = 48301656. Its totient is φ = 5483520.

The previous prime is 16650397. The next prime is 16650433. The reversal of 16650432 is 23405661.

16650432 is a `hidden beast` number, since 1 + 6 + 650 + 4 + 3 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 16650396 and 16650405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16650433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78807 + ... + 79017.

Almost surely, 2^16650432 is an apocalyptic number.

16650432 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 16650432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24150828).

16650432 is an abundant number, since it is smaller than the sum of its proper divisors (31651224).

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

16650432 is a wasteful number, since it uses less digits than its factorization.

16650432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366 (or 353 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 16650432 is about 4080.4940877301. The cubic root of 16650432 is about 255.3535119990.

The spelling of 16650432 in words is "sixteen million, six hundred fifty thousand, four hundred thirty-two".