641543603552 has 24 divisors (see below), whose sum is σ = 1263134553912. Its totient is φ = 320747526400.

The previous prime is 641543603537. The next prime is 641543603621. The reversal of 641543603552 is 255306345146.

641543603552 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 3 ways as a sum of consecutive naturals, for example, 325349 + ... + 1178532.

It is an arithmetic number, because the mean of its divisors is an integer number (52630606413).

Almost surely, 2^641543603552 is an apocalyptic number.

It is an amenable number.

641543603552 is a deficient number, since it is larger than the sum of its proper divisors (621590950360).

641543603552 is a wasteful number, since it uses less digits than its factorization.

641543603552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517222 (or 1517214 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 44.

Adding to 641543603552 its reverse (255306345146), we get a palindrome (896849948698).

The spelling of 641543603552 in words is "six hundred forty-one billion, five hundred forty-three million, six hundred three thousand, five hundred fifty-two".