4331089666 has 4 divisors (see below), whose sum is σ = 6496634502. Its totient is φ = 2165544832.

The previous prime is 4331089657. The next prime is 4331089667. The reversal of 4331089666 is 6669801334.

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., 4240744641 + 90345025 = 65121^2 + 9505^2 .

It is not an unprimeable number, because it can be changed into a prime (4331089667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082772415 + ... + 1082772418.

Almost surely, 2^4331089666 is an apocalyptic number.

4331089666 is a deficient number, since it is larger than the sum of its proper divisors (2165544836).

4331089666 is a wasteful number, since it uses less digits than its factorization.

4331089666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2165544835.

The product of its (nonzero) digits is 559872, while the sum is 46.

The square root of 4331089666 is about 65811.0147771633. The cubic root of 4331089666 is about 1630.0429895696.

The spelling of 4331089666 in words is "four billion, three hundred thirty-one million, eighty-nine thousand, six hundred sixty-six".