4066666001 has 8 divisors (see below), whose sum is σ = 4083388200. Its totient is φ = 4049960320.

The previous prime is 4066665979. The next prime is 4066666003. The reversal of 4066666001 is 1006666604.

It can be written as a sum of positive squares in 4 ways, for example, as 1695462976 + 2371203025 = 41176^2 + 48695^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4066666001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4066666003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 781115 + ... + 786303.

It is an arithmetic number, because the mean of its divisors is an integer number (510423525).

Almost surely, 2^4066666001 is an apocalyptic number.

It is an amenable number.

4066666001 is a deficient number, since it is larger than the sum of its proper divisors (16722199).

4066666001 is a wasteful number, since it uses less digits than its factorization.

4066666001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8259.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 4066666001 is about 63770.4163464533. The cubic root of 4066666001 is about 1596.1713144172.

The spelling of 4066666001 in words is "four billion, sixty-six million, six hundred sixty-six thousand, one".