16709773824 has 400 divisors, whose sum is σ = 53500993128. Its totient is φ = 5173936128.

The previous prime is 16709773811. The next prime is 16709773831. The reversal of 16709773824 is 42837790761.

It can be written as a sum of positive squares in 4 ways, for example, as 16684372224 + 25401600 = 129168^2 + 5040^2 .

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 39 ways as a sum of consecutive naturals, for example, 96588202 + ... + 96588374.

Almost surely, 2^16709773824 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 16709773824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26750496564).

16709773824 is an abundant number, since it is smaller than the sum of its proper divisors (36791219304).

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

16709773824 is a wasteful number, since it uses less digits than its factorization.

16709773824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 332 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 54.

The spelling of 16709773824 in words is "sixteen billion, seven hundred nine million, seven hundred seventy-three thousand, eight hundred twenty-four".