9351666856 has 48 divisors (see below), whose sum is σ = 20493980640. Its totient is φ = 3988827360.

The previous prime is 9351666851. The next prime is 9351666869. The reversal of 9351666856 is 6586661539.

It is a junction number, because it is equal to n+sod(n) for n = 9351666797 and 9351666806.

It is not an unprimeable number, because it can be changed into a prime (9351666851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26181 + ... + 139243.

It is an arithmetic number, because the mean of its divisors is an integer number (426957930).

Almost surely, 2^9351666856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9351666856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10246990320).

9351666856 is an abundant number, since it is smaller than the sum of its proper divisors (11142313784).

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

9351666856 is a wasteful number, since it uses less digits than its factorization.

9351666856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113294 (or 113283 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 55.

The square root of 9351666856 is about 96704.0167521494. The cubic root of 9351666856 is about 2106.8308823324.

The spelling of 9351666856 in words is "nine billion, three hundred fifty-one million, six hundred sixty-six thousand, eight hundred fifty-six".