4066386472818 has 24 divisors (see below), whose sum is σ = 8814872226108. Its totient is φ = 1354790126592.

The previous prime is 4066386472807. The next prime is 4066386472847. The reversal of 4066386472818 is 8182746836604.

4066386472818 is a `hidden beast` number, since 4 + 0 + 6 + 6 + 3 + 86 + 472 + 81 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3923477523729 + 142908949089 = 1980777^2 + 378033^2 .

It is a super-2 number, since 2×4066386472818² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55965271 + ... + 56037882.

Almost surely, 2^{4066386472818} is an apocalyptic number.

4066386472818 is an abundant number, since it is smaller than the sum of its proper divisors (4748485753290).

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

4066386472818 is a wasteful number, since it uses less digits than its factorization.

4066386472818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112005178 (or 112005175 counting only the distinct ones).

The product of its (nonzero) digits is 74317824, while the sum is 63.

The spelling of 4066386472818 in words is "four trillion, sixty-six billion, three hundred eighty-six million, four hundred seventy-two thousand, eight hundred eighteen".