9664989016 has 32 divisors (see below), whose sum is σ = 18380340000. Its totient is φ = 4764013056.

The previous prime is 9664989001. The next prime is 9664989029. The reversal of 9664989016 is 6109894669.

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, 145680 + ... + 201376.

It is an arithmetic number, because the mean of its divisors is an integer number (574385625).

Almost surely, 2^9664989016 is an apocalyptic number.

It is an amenable number.

9664989016 is a deficient number, since it is larger than the sum of its proper divisors (8715350984).

9664989016 is a wasteful number, since it uses less digits than its factorization.

9664989016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56011 (or 56007 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 58.

The square root of 9664989016 is about 98310.6760021515. The cubic root of 9664989016 is about 2130.1022687420.

The spelling of 9664989016 in words is "nine billion, six hundred sixty-four million, nine hundred eighty-nine thousand, sixteen".