9666035856 has 75 divisors (see below), whose sum is σ = 27986559843. Its totient is φ = 3220832160.

The previous prime is 9666035843. The next prime is 9666035891. The reversal of 9666035856 is 6585306669.

The square root of 9666035856 is 98316.

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

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

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 3538011 + ... + 3540741.

Almost surely, 2^9666035856 is an apocalyptic number.

9666035856 is the 98316-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9666035856

9666035856 is an abundant number, since it is smaller than the sum of its proper divisors (18320523987).

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

9666035856 is an frugal number, since it uses more digits than its factorization.

9666035856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5482 (or 2736 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 54.

The cubic root of 9666035856 is about 2130.1791715973.

The spelling of 9666035856 in words is "nine billion, six hundred sixty-six million, thirty-five thousand, eight hundred fifty-six".