16214947840 has 192 divisors, whose sum is σ = 47887519680. Its totient is φ = 5131468800.

The previous prime is 16214947817. The next prime is 16214947841. The reversal of 16214947840 is 4874941261.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16214947841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 923140 + ... + 940540.

It is an arithmetic number, because the mean of its divisors is an integer number (249414165).

Almost surely, 2^16214947840 is an apocalyptic number.

16214947840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16214947840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23943759840).

16214947840 is an abundant number, since it is smaller than the sum of its proper divisors (31672571840).

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

16214947840 is a wasteful number, since it uses less digits than its factorization.

16214947840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17448 (or 17428 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 16214947840 in words is "sixteen billion, two hundred fourteen million, nine hundred forty-seven thousand, eight hundred forty".