16216404606 has 80 divisors (see below), whose sum is σ = 37611307008. Its totient is φ = 5216821200.

The previous prime is 16216404553. The next prime is 16216404661. The reversal of 16216404606 is 60640461261.

16216404606 is a `hidden beast` number, since 1 + 6 + 2 + 1 + 6 + 40 + 4 + 606 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1919211 + ... + 1927641.

Almost surely, 2^16216404606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16216404606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18805653504).

16216404606 is an abundant number, since it is smaller than the sum of its proper divisors (21394902402).

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

16216404606 is a wasteful number, since it uses less digits than its factorization.

16216404606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8859 (or 8850 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

Adding to 16216404606 its reverse (60640461261), we get a palindrome (76856865867).

The spelling of 16216404606 in words is "sixteen billion, two hundred sixteen million, four hundred four thousand, six hundred six".