9666443294 has 8 divisors (see below), whose sum is σ = 14632689720. Its totient is φ = 4788880056.

The previous prime is 9666443257. The next prime is 9666443317. The reversal of 9666443294 is 4923446669.

It is a happy number.

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

It is a super-2 number, since 2×9666443294² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22170524 + ... + 22170959.

It is an arithmetic number, because the mean of its divisors is an integer number (1829086215).

Almost surely, 2^9666443294 is an apocalyptic number.

9666443294 is a deficient number, since it is larger than the sum of its proper divisors (4966246426).

9666443294 is a wasteful number, since it uses less digits than its factorization.

9666443294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44341594.

The product of its digits is 6718464, while the sum is 53.

The square root of 9666443294 is about 98318.0720620578. The cubic root of 9666443294 is about 2130.2091012658.

The spelling of 9666443294 in words is "nine billion, six hundred sixty-six million, four hundred forty-three thousand, two hundred ninety-four".