20084515216 has 80 divisors (see below), whose sum is σ = 41317855488. Its totient is φ = 9438105600.

The previous prime is 20084515189. The next prime is 20084515223. The reversal of 20084515216 is 61251548002.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8803996 + ... + 8806276.

Almost surely, 2^20084515216 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 20084515216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20658927744).

20084515216 is an abundant number, since it is smaller than the sum of its proper divisors (21233340272).

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

20084515216 is a wasteful number, since it uses less digits than its factorization.

20084515216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2720 (or 2714 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The spelling of 20084515216 in words is "twenty billion, eighty-four million, five hundred fifteen thousand, two hundred sixteen".