4066805016 has 64 divisors (see below), whose sum is σ = 11359202400. Its totient is φ = 1348099200.

The previous prime is 4066805009. The next prime is 4066805081. The reversal of 4066805016 is 6105086604.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12915 + ... + 91106.

Almost surely, 2^4066805016 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 4066805016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5679601200).

4066805016 is an abundant number, since it is smaller than the sum of its proper divisors (7292397384).

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

4066805016 is a wasteful number, since it uses less digits than its factorization.

4066805016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104217 (or 104207 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 4066805016 is about 63771.5063017959. The cubic root of 4066805016 is about 1596.1895020618.

The spelling of 4066805016 in words is "four billion, sixty-six million, eight hundred five thousand, sixteen".