16999720282680 has 256 divisors, whose sum is σ = 56395529579520. Its totient is φ = 4077570072576.

The previous prime is 16999720282651. The next prime is 16999720282739. The reversal of 16999720282680 is 8628202799961.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a congruent number.

It is an unprimeable number.

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, 54412194 + ... + 54723726.

It is an arithmetic number, because the mean of its divisors is an integer number (220295037420).

Almost surely, 2^{16999720282680} is an apocalyptic number.

16999720282680 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 16999720282680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28197764789760).

16999720282680 is an abundant number, since it is smaller than the sum of its proper divisors (39395809296840).

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

16999720282680 is a wasteful number, since it uses less digits than its factorization.

16999720282680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312750 (or 312746 counting only the distinct ones).

The product of its (nonzero) digits is 94058496, while the sum is 69.

The spelling of 16999720282680 in words is "sixteen trillion, nine hundred ninety-nine billion, seven hundred twenty million, two hundred eighty-two thousand, six hundred eighty".