16065163656 has 24 divisors (see below), whose sum is σ = 43509818430. Its totient is φ = 5355054528.

The previous prime is 16065163649. The next prime is 16065163657. The reversal of 16065163656 is 65636156061.

16065163656 is a `hidden beast` number, since 1 + 6 + 0 + 6 + 5 + 1 + 636 + 5 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15732684900 + 332478756 = 125430^2 + 18234^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (16065163657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111563565 + ... + 111563708.

Almost surely, 2^16065163656 is an apocalyptic number.

It is an amenable number.

16065163656 is an abundant number, since it is smaller than the sum of its proper divisors (27444654774).

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

16065163656 is a wasteful number, since it uses less digits than its factorization.

16065163656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223127285 (or 223127278 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The spelling of 16065163656 in words is "sixteen billion, sixty-five million, one hundred sixty-three thousand, six hundred fifty-six".