641546336 has 24 divisors (see below), whose sum is σ = 1265607000. Its totient is φ = 320122368.

The previous prime is 641546327. The next prime is 641546341. The reversal of 641546336 is 633645146.

It is a self number, because there is not a number n which added to its sum of digits gives 641546336.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4121 + ... + 36056.

It is an arithmetic number, because the mean of its divisors is an integer number (52733625).

Almost surely, 2^641546336 is an apocalyptic number.

It is an amenable number.

641546336 is a deficient number, since it is larger than the sum of its proper divisors (624060664).

641546336 is a wasteful number, since it uses less digits than its factorization.

641546336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40686 (or 40678 counting only the distinct ones).

The product of its digits is 155520, while the sum is 38.

The square root of 641546336 is about 25328.7649916059. The cubic root of 641546336 is about 862.4673760957.

The spelling of 641546336 in words is "six hundred forty-one million, five hundred forty-six thousand, three hundred thirty-six".