16943638712 has 192 divisors, whose sum is σ = 44852451840. Its totient is φ = 5827979520.

The previous prime is 16943638711. The next prime is 16943638753. The reversal of 16943638712 is 21783634961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16943638711) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2021843 + ... + 2030205.

It is an arithmetic number, because the mean of its divisors is an integer number (233606520).

Almost surely, 2^16943638712 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 16943638712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22426225920).

16943638712 is an abundant number, since it is smaller than the sum of its proper divisors (27908813128).

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

16943638712 is a wasteful number, since it uses less digits than its factorization.

16943638712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8434 (or 8419 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 50.

The spelling of 16943638712 in words is "sixteen billion, nine hundred forty-three million, six hundred thirty-eight thousand, seven hundred twelve".