9041641866 has 48 divisors (see below), whose sum is σ = 20310249960. Its totient is φ = 2903564160.

The previous prime is 9041641783. The next prime is 9041641871. The reversal of 9041641866 is 6681461409.

It can be written as a sum of positive squares in 4 ways, for example, as 8775005625 + 266636241 = 93675^2 + 16329^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 221856 + ... + 259428.

Almost surely, 2^9041641866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9041641866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10155124980).

9041641866 is an abundant number, since it is smaller than the sum of its proper divisors (11268608094).

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

9041641866 is a wasteful number, since it uses less digits than its factorization.

9041641866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38071 (or 38068 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 9041641866 is about 95087.5484277516. The cubic root of 9041641866 is about 2083.2869831665.

The spelling of 9041641866 in words is "nine billion, forty-one million, six hundred forty-one thousand, eight hundred sixty-six".