20116667738808 has 256 divisors, whose sum is σ = 58024885248000. Its totient is φ = 6450753254400.

The previous prime is 20116667738767. The next prime is 20116667738809. The reversal of 20116667738808 is 80883776661102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20116667738809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1700329453 + ... + 1700341283.

It is an arithmetic number, because the mean of its divisors is an integer number (226659708000).

Almost surely, 2^{20116667738808} 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 20116667738808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29012442624000).

20116667738808 is an abundant number, since it is smaller than the sum of its proper divisors (37908217509192).

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

20116667738808 is a wasteful number, since it uses less digits than its factorization.

20116667738808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13363 (or 13353 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 63.

The spelling of 20116667738808 in words is "twenty trillion, one hundred sixteen billion, six hundred sixty-seven million, seven hundred thirty-eight thousand, eight hundred eight".