641841606 has 48 divisors (see below), whose sum is σ = 1591200000. Its totient is φ = 183166704.

The previous prime is 641841587. The next prime is 641841619. The reversal of 641841606 is 606148146.

641841606 is a `hidden beast` number, since 6 + 4 + 1 + 8 + 41 + 606 = 666.

It is a congruent number.

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, 125895 + ... + 130893.

It is an arithmetic number, because the mean of its divisors is an integer number (33150000).

Almost surely, 2^641841606 is an apocalyptic number.

641841606 is an abundant number, since it is smaller than the sum of its proper divisors (949358394).

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

641841606 is a wasteful number, since it uses less digits than its factorization.

641841606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6033 (or 6030 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 641841606 is about 25334.5930695561. The cubic root of 641841606 is about 862.5996719092.

The spelling of 641841606 in words is "six hundred forty-one million, eight hundred forty-one thousand, six hundred six".