4066666670340 has 108 divisors (see below), whose sum is σ = 12485971141644. Its totient is φ = 1071378523008.

The previous prime is 4066666670329. The next prime is 4066666670387. The reversal of 4066666670340 is 430766666604.

It can be written as a sum of positive squares in 2 ways, for example, as 1822710606084 + 2243956064256 = 1350078^2 + 1497984^2 .

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 399739 + ... + 2879778.

Almost surely, 2^{4066666670340} 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 4066666670340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6242985570822).

4066666670340 is an abundant number, since it is smaller than the sum of its proper divisors (8419304471304).

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

4066666670340 is a wasteful number, since it uses less digits than its factorization.

4066666670340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3279698 (or 3279610 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 54.

The spelling of 4066666670340 in words is "four trillion, sixty-six billion, six hundred sixty-six million, six hundred seventy thousand, three hundred forty".