4166041666 has 4 divisors (see below), whose sum is σ = 6249062502. Its totient is φ = 2083020832.

The previous prime is 4166041643. The next prime is 4166041687. The reversal of 4166041666 is 6661406614.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4066740441 + 99301225 = 63771^2 + 9965^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1041510415 + ... + 1041510418.

Almost surely, 2^4166041666 is an apocalyptic number.

4166041666 is a deficient number, since it is larger than the sum of its proper divisors (2083020836).

4166041666 is a wasteful number, since it uses less digits than its factorization.

4166041666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2083020835.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 4166041666 is about 64544.8810208834. The cubic root of 4166041666 is about 1609.0685127850.

The spelling of 4166041666 in words is "four billion, one hundred sixty-six million, forty-one thousand, six hundred sixty-six".