16606777122 has 48 divisors (see below), whose sum is σ = 38838873528. Its totient is φ = 5097945600.

The previous prime is 16606777111. The next prime is 16606777129. The reversal of 16606777122 is 22177760661.

16606777122 is a `hidden beast` number, since 16 + 606 + 7 + 7 + 7 + 1 + 22 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7892367921 + 8714409201 = 88839^2 + 93351^2 .

It is not an unprimeable number, because it can be changed into a prime (16606777129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19372 + ... + 183272.

Almost surely, 2^16606777122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16606777122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19419436764).

16606777122 is an abundant number, since it is smaller than the sum of its proper divisors (22232096406).

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

16606777122 is a wasteful number, since it uses less digits than its factorization.

16606777122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164355 (or 164352 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The spelling of 16606777122 in words is "sixteen billion, six hundred six million, seven hundred seventy-seven thousand, one hundred twenty-two".