9664113372 has 12 divisors (see below), whose sum is σ = 22549597896. Its totient is φ = 3221371120.

The previous prime is 9664113367. The next prime is 9664113377. The reversal of 9664113372 is 2733114669.

It is an interprime number because it is at equal distance from previous prime (9664113367) and next prime (9664113377).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9664113377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402671379 + ... + 402671402.

It is an arithmetic number, because the mean of its divisors is an integer number (1879133158).

Almost surely, 2^9664113372 is an apocalyptic number.

It is an amenable number.

9664113372 is an abundant number, since it is smaller than the sum of its proper divisors (12885484524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9664113372 is a wasteful number, since it uses less digits than its factorization.

9664113372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805342788 (or 805342786 counting only the distinct ones).

The product of its digits is 163296, while the sum is 42.

The square root of 9664113372 is about 98306.2224480221. Note that the first 3 decimals coincide. The cubic root of 9664113372 is about 2130.0379380049.

The spelling of 9664113372 in words is "nine billion, six hundred sixty-four million, one hundred thirteen thousand, three hundred seventy-two".