9666457822 has 64 divisors (see below), whose sum is σ = 18498170880. Its totient is φ = 3688091136.

The previous prime is 9666457817. The next prime is 9666457847. The reversal of 9666457822 is 2287546669.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3901248 + ... + 3903724.

It is an arithmetic number, because the mean of its divisors is an integer number (289033920).

Almost surely, 2^9666457822 is an apocalyptic number.

9666457822 is a deficient number, since it is larger than the sum of its proper divisors (8831713058).

9666457822 is a wasteful number, since it uses less digits than its factorization.

9666457822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3385.

The product of its digits is 8709120, while the sum is 55.

The square root of 9666457822 is about 98318.1459446831. The cubic root of 9666457822 is about 2130.2101684513.

The spelling of 9666457822 in words is "nine billion, six hundred sixty-six million, four hundred fifty-seven thousand, eight hundred twenty-two".