20967232326816 has 192 divisors, whose sum is σ = 56576603381760. Its totient is φ = 6795352058880.

The previous prime is 20967232326797. The next prime is 20967232326847. The reversal of 20967232326816 is 61862323276902.

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 31 ways as a sum of consecutive naturals, for example, 1562263786 + ... + 1562277206.

It is an arithmetic number, because the mean of its divisors is an integer number (294669809280).

Almost surely, 2^{20967232326816} 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 20967232326816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28288301690880).

20967232326816 is an abundant number, since it is smaller than the sum of its proper divisors (35609371054944).

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

20967232326816 is a wasteful number, since it uses less digits than its factorization.

20967232326816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15179 (or 15171 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 57.

The spelling of 20967232326816 in words is "twenty trillion, nine hundred sixty-seven billion, two hundred thirty-two million, three hundred twenty-six thousand, eight hundred sixteen".