4441199666 has 4 divisors (see below), whose sum is σ = 6661799502. Its totient is φ = 2220599832.

The previous prime is 4441199657. The next prime is 4441199677. The reversal of 4441199666 is 6669911444.

It is a happy number.

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., 4273367641 + 167832025 = 65371^2 + 12955^2 .

It is a zygodrome in base 10.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110299915 + ... + 1110299918.

Almost surely, 2^4441199666 is an apocalyptic number.

4441199666 is a deficient number, since it is larger than the sum of its proper divisors (2220599836).

4441199666 is a wasteful number, since it uses less digits than its factorization.

4441199666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220599835.

The product of its digits is 1119744, while the sum is 50.

The square root of 4441199666 is about 66642.3263849635. The cubic root of 4441199666 is about 1643.7411698871.

The spelling of 4441199666 in words is "four billion, four hundred forty-one million, one hundred ninety-nine thousand, six hundred sixty-six".