9859695616 has 99 divisors (see below), whose sum is σ = 20605402909. Its totient is φ = 4715368448.

The previous prime is 9859695611. The next prime is 9859695619. The reversal of 9859695616 is 6165969589.

The square root of 9859695616 is 99296.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5170185216 + 4689510400 = 71904^2 + 68480^2 .

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9859695611) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 92146635 + ... + 92146741.

Almost surely, 2^9859695616 is an apocalyptic number.

9859695616 is the 99296-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9859695616

9859695616 is an abundant number, since it is smaller than the sum of its proper divisors (10745707293).

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

9859695616 is an equidigital number, since it uses as much as digits as its factorization.

9859695616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292 (or 138 counting only the distinct ones).

The product of its digits is 31492800, while the sum is 64.

The cubic root of 9859695616 is about 2144.3113084752.

Multiplying 9859695616 by its sum of digits (64), we get a square (631020519424 = 794368²).

9859695616 divided by its sum of digits (64) gives a square (154057744 = 12412²).

The spelling of 9859695616 in words is "nine billion, eight hundred fifty-nine million, six hundred ninety-five thousand, six hundred sixteen".