9666464646668 has 48 divisors (see below), whose sum is σ = 17076765371904. Its totient is φ = 4787624328960.

The previous prime is 9666464646637. The next prime is 9666464646767. The reversal of 9666464646668 is 8666464646669.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 366738146 + ... + 366764502.

It is an arithmetic number, because the mean of its divisors is an integer number (355765945248).

Almost surely, 2^{9666464646668} is an apocalyptic number.

It is an amenable number.

9666464646668 is a deficient number, since it is larger than the sum of its proper divisors (7410300725236).

9666464646668 is a wasteful number, since it uses less digits than its factorization.

9666464646668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28562 (or 28560 counting only the distinct ones).

The product of its digits is 7739670528, while the sum is 77.

Subtracting from 9666464646668 its reverse (8666464646669), we obtain a palindrome (999999999999).

The spelling of 9666464646668 in words is "nine trillion, six hundred sixty-six billion, four hundred sixty-four million, six hundred forty-six thousand, six hundred sixty-eight".