16839841680 has 280 divisors, whose sum is σ = 59037739200. Its totient is φ = 4464979200.

The previous prime is 16839841661. The next prime is 16839841729. The reversal of 16839841680 is 8614893861.

16839841680 is a `hidden beast` number, since 1 + 68 + 3 + 98 + 416 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 11604955 + ... + 11606405.

Almost surely, 2^16839841680 is an apocalyptic number.

16839841680 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 16839841680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29518869600).

16839841680 is an abundant number, since it is smaller than the sum of its proper divisors (42197897520).

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

16839841680 is a wasteful number, since it uses less digits than its factorization.

16839841680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681 (or 1660 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 16839841680 in words is "sixteen billion, eight hundred thirty-nine million, eight hundred forty-one thousand, six hundred eighty".