9915660846 has 160 divisors (see below), whose sum is σ = 27756664320. Its totient is φ = 2575831104.

The previous prime is 9915660817. The next prime is 9915660857. The reversal of 9915660846 is 6480665199.

It is a happy number.

9915660846 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 9915660792 and 9915660801.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 982695 + ... + 992733.

It is an arithmetic number, because the mean of its divisors is an integer number (173479152).

Almost surely, 2^9915660846 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9915660846, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13878332160).

9915660846 is an abundant number, since it is smaller than the sum of its proper divisors (17841003474).

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

9915660846 is a wasteful number, since it uses less digits than its factorization.

9915660846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10140 (or 10131 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The square root of 9915660846 is about 99577.4113240548. The cubic root of 9915660846 is about 2148.3608090569.

It can be divided in two parts, 9915 and 660846, that added together give a square (670761 = 819²).

The spelling of 9915660846 in words is "nine billion, nine hundred fifteen million, six hundred sixty thousand, eight hundred forty-six".