16236216216 has 96 divisors (see below), whose sum is σ = 48445834320. Its totient is φ = 4871328000.

The previous prime is 16236216203. The next prime is 16236216239. The reversal of 16236216216 is 61261263261.

16236216216 is a `hidden beast` number, since 1 + 6 + 2 + 3 + 6 + 21 + 621 + 6 = 666.

It is a super-2 number, since 2×16236216216² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 2.

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, 21495 + ... + 181478.

Almost surely, 2^16236216216 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 16236216216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24222917160).

16236216216 is an abundant number, since it is smaller than the sum of its proper divisors (32209618104).

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

16236216216 is a wasteful number, since it uses less digits than its factorization.

16236216216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203097 (or 203090 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

Adding to 16236216216 its reverse (61261263261), we get a palindrome (77497479477).

The spelling of 16236216216 in words is "sixteen billion, two hundred thirty-six million, two hundred sixteen thousand, two hundred sixteen".