9601665680 has 40 divisors (see below), whose sum is σ = 23093667000. Its totient is φ = 3708228608.

The previous prime is 9601665679. The next prime is 9601665683. The reversal of 9601665680 is 865661069.

It can be written as a sum of positive squares in 4 ways, for example, as 28217344 + 9573448336 = 5312^2 + 97844^2 .

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

It is not an unprimeable number, because it can be changed into a prime (9601665683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2067005 + ... + 2071644.

It is an arithmetic number, because the mean of its divisors is an integer number (577341675).

Almost surely, 2^9601665680 is an apocalyptic number.

It is an amenable number.

9601665680 is an abundant number, since it is smaller than the sum of its proper divisors (13492001320).

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

9601665680 is a wasteful number, since it uses less digits than its factorization.

9601665680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4138691 (or 4138685 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 9601665680 is about 97988.0894803037. The cubic root of 9601665680 is about 2125.4400513348.

The spelling of 9601665680 in words is "nine billion, six hundred one million, six hundred sixty-five thousand, six hundred eighty".