21336045498216 has 192 divisors, whose sum is σ = 61061614286400. Its totient is φ = 6711670139904.

The previous prime is 21336045498199. The next prime is 21336045498223. The reversal of 21336045498216 is 61289454063312.

It is a happy number.

21336045498216 is a `hidden beast` number, since 2 + 1 + 3 + 3 + 6 + 0 + 4 + 549 + 82 + 16 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 988822020 + ... + 988843596.

It is an arithmetic number, because the mean of its divisors is an integer number (318029241075).

Almost surely, 2^{21336045498216} 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 21336045498216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30530807143200).

21336045498216 is an abundant number, since it is smaller than the sum of its proper divisors (39725568788184).

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

21336045498216 is a wasteful number, since it uses less digits than its factorization.

21336045498216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24368 (or 24361 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 54.

The spelling of 21336045498216 in words is "twenty-one trillion, three hundred thirty-six billion, forty-five million, four hundred ninety-eight thousand, two hundred sixteen".