9817106665338 has 24 divisors (see below), whose sum is σ = 24309026028768. Its totient is φ = 2804887618632.

The previous prime is 9817106665319. The next prime is 9817106665343. The reversal of 9817106665338 is 8335666017189.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38956772356 + ... + 38956772607.

It is an arithmetic number, because the mean of its divisors is an integer number (1012876084532).

Almost surely, 2^{9817106665338} is an apocalyptic number.

9817106665338 is an abundant number, since it is smaller than the sum of its proper divisors (14491919363430).

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

9817106665338 is a wasteful number, since it uses less digits than its factorization.

9817106665338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77913544978 (or 77913544975 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 63.

The spelling of 9817106665338 in words is "nine trillion, eight hundred seventeen billion, one hundred six million, six hundred sixty-five thousand, three hundred thirty-eight".