4173448666 has 4 divisors (see below), whose sum is σ = 6260173002. Its totient is φ = 2086724332.

The previous prime is 4173448663. The next prime is 4173448681. The reversal of 4173448666 is 6668443714.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6668443714 = 2 ⋅3334221857.

It can be written as a sum of positive squares in only one way, i.e., 3936935025 + 236513641 = 62745^2 + 15379^2 .

It is not an unprimeable number, because it can be changed into a prime (4173448661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1043362165 + ... + 1043362168.

Almost surely, 2^4173448666 is an apocalyptic number.

4173448666 is a deficient number, since it is larger than the sum of its proper divisors (2086724336).

4173448666 is a wasteful number, since it uses less digits than its factorization.

4173448666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2086724335.

The product of its digits is 2322432, while the sum is 49.

The square root of 4173448666 is about 64602.2342183303. The cubic root of 4173448666 is about 1610.0215608650.

The spelling of 4173448666 in words is "four billion, one hundred seventy-three million, four hundred forty-eight thousand, six hundred sixty-six".