16169704704 has 180 divisors, whose sum is σ = 49128192036. Its totient is φ = 5287845888.

The previous prime is 16169704699. The next prime is 16169704711. The reversal of 16169704704 is 40740796161.

16169704704 is a `hidden beast` number, since 16 + 169 + 7 + 0 + 470 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11820038400 + 4349666304 = 108720^2 + 65952^2 .

It is a super-2 number, since 2×16169704704² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16169704704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1091652 + ... + 1106364.

Almost surely, 2^16169704704 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 16169704704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24564096018).

16169704704 is an abundant number, since it is smaller than the sum of its proper divisors (32958487332).

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

16169704704 is an equidigital number, since it uses as much as digits as its factorization.

16169704704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14794 (or 14771 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 16169704704 in words is "sixteen billion, one hundred sixty-nine million, seven hundred four thousand, seven hundred four".