641703828016 has 10 divisors (see below), whose sum is σ = 1243301166812. Its totient is φ = 320851914000.

The previous prime is 641703828013. The next prime is 641703828023. The reversal of 641703828016 is 610828307146.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (641703828013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20053244610 + ... + 20053244641.

Almost surely, 2^641703828016 is an apocalyptic number.

It is an amenable number.

641703828016 is a deficient number, since it is larger than the sum of its proper divisors (601597338796).

641703828016 is a wasteful number, since it uses less digits than its factorization.

641703828016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40106489259 (or 40106489253 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 641703828016 in words is "six hundred forty-one billion, seven hundred three million, eight hundred twenty-eight thousand, sixteen".