4066706916 has 18 divisors (see below), whose sum is σ = 10279731462. Its totient is φ = 1355568960.

The previous prime is 4066706899. The next prime is 4066706921. The reversal of 4066706916 is 6196076604.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3010716900 + 1055990016 = 54870^2 + 32496^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56482005 + ... + 56482076.

Almost surely, 2^4066706916 is an apocalyptic number.

It is an amenable number.

4066706916 is an abundant number, since it is smaller than the sum of its proper divisors (6213024546).

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

4066706916 is a wasteful number, since it uses less digits than its factorization.

4066706916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112964091 (or 112964086 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 4066706916 is about 63770.7371448692. The cubic root of 4066706916 is about 1596.1766674616.

The spelling of 4066706916 in words is "four billion, sixty-six million, seven hundred six thousand, nine hundred sixteen".