16699711094784 has 459 divisors, whose sum is σ = 51412265912163. Its totient is φ = 5222386630656.

The previous prime is 16699711094657. The next prime is 16699711094789. The reversal of 16699711094784 is 48749011799661.

The square root of 16699711094784 is 4086528.

It is a perfect power (a square), and thus also a powerful number.

16699711094784 is a `hidden beast` number, since 1 + 6 + 69 + 97 + 1 + 1 + 0 + 9 + 478 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2653406429184 + 14046304665600 = 1628928^2 + 3747840^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (16699711094789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 53353709412 + ... + 53353709724.

Almost surely, 2^{16699711094784} is an apocalyptic number.

16699711094784 is the 4086528-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16699711094784

16699711094784 is an abundant number, since it is smaller than the sum of its proper divisors (34712554817379).

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

16699711094784 is an frugal number, since it uses more digits than its factorization.

16699711094784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 164602368, while the sum is 72.

The spelling of 16699711094784 in words is "sixteen trillion, six hundred ninety-nine billion, seven hundred eleven million, ninety-four thousand, seven hundred eighty-four".