9665331759388 has 24 divisors (see below), whose sum is σ = 16950050345312. Its totient is φ = 4822461391104.

The previous prime is 9665331759383. The next prime is 9665331759547. The reversal of 9665331759388 is 8839571335669.

It is a super-2 number, since 2×9665331759388² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9665331759388.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9665331759383) 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, 35538256 + ... + 35809192.

Almost surely, 2^{9665331759388} is an apocalyptic number.

It is an amenable number.

9665331759388 is a deficient number, since it is larger than the sum of its proper divisors (7284718585924).

9665331759388 is a wasteful number, since it uses less digits than its factorization.

9665331759388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289741 (or 289739 counting only the distinct ones).

The product of its digits is 881798400, while the sum is 73.

The spelling of 9665331759388 in words is "nine trillion, six hundred sixty-five billion, three hundred thirty-one million, seven hundred fifty-nine thousand, three hundred eighty-eight".