9351664720 has 40 divisors (see below), whose sum is σ = 22886972640. Its totient is φ = 3543788160.

The previous prime is 9351664711. The next prime is 9351664753. The reversal of 9351664720 is 274661539.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

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, 3074686 + ... + 3077725.

It is an arithmetic number, because the mean of its divisors is an integer number (572174316).

Almost surely, 2^9351664720 is an apocalyptic number.

It is an amenable number.

9351664720 is an abundant number, since it is smaller than the sum of its proper divisors (13535307920).

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

9351664720 is a wasteful number, since it uses less digits than its factorization.

9351664720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6152443 (or 6152437 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 9351664720 is about 96704.0057081401. The cubic root of 9351664720 is about 2106.8307219264.

The spelling of 9351664720 in words is "nine billion, three hundred fifty-one million, six hundred sixty-four thousand, seven hundred twenty".