641648204224 has 28 divisors (see below), whose sum is σ = 1273587978600. Its totient is φ = 320744146688.

The previous prime is 641648204191. The next prime is 641648204227. The reversal of 641648204224 is 422402846146.

It is a super-2 number, since 2×641648204224² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641648204227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 990079 + ... + 1504510.

It is an arithmetic number, because the mean of its divisors is an integer number (45485284950).

Almost surely, 2^641648204224 is an apocalyptic number.

641648204224 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

641648204224 is a deficient number, since it is larger than the sum of its proper divisors (631939774376).

641648204224 is a wasteful number, since it uses less digits than its factorization.

641648204224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2498620 (or 2498610 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 43.

The spelling of 641648204224 in words is "six hundred forty-one billion, six hundred forty-eight million, two hundred four thousand, two hundred twenty-four".