9666063544 has 32 divisors (see below), whose sum is σ = 18766476000. Its totient is φ = 4661983872.

The previous prime is 9666063509. The next prime is 9666063571. The reversal of 9666063544 is 4453606669.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234517 + ... + 272635.

It is an arithmetic number, because the mean of its divisors is an integer number (586452375).

Almost surely, 2^9666063544 is an apocalyptic number.

It is an amenable number.

9666063544 is a deficient number, since it is larger than the sum of its proper divisors (9100412456).

9666063544 is a wasteful number, since it uses less digits than its factorization.

9666063544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39247 (or 39243 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 49.

The square root of 9666063544 is about 98316.1408111608. The cubic root of 9666063544 is about 2130.1812055350.

The spelling of 9666063544 in words is "nine billion, six hundred sixty-six million, sixty-three thousand, five hundred forty-four".