641816060 has 24 divisors (see below), whose sum is σ = 1384242720. Its totient is φ = 249787584.

The previous prime is 641816041. The next prime is 641816099. The reversal of 641816060 is 60618146.

It is a happy number.

641816060 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432920 + ... + 434399.

It is an arithmetic number, because the mean of its divisors is an integer number (57676780).

Almost surely, 2^641816060 is an apocalyptic number.

It is an amenable number.

641816060 is an abundant number, since it is smaller than the sum of its proper divisors (742426660).

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

641816060 is a wasteful number, since it uses less digits than its factorization.

641816060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867365 (or 867363 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 641816060 is about 25334.0888922416. The cubic root of 641816060 is about 862.5882276196.

The spelling of 641816060 in words is "six hundred forty-one million, eight hundred sixteen thousand, sixty".