641068364646 has 48 divisors (see below), whose sum is σ = 1433978078208. Its totient is φ = 206768732400.

The previous prime is 641068364551. The next prime is 641068364653. The reversal of 641068364646 is 646463860146.

It is a happy number.

641068364646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 641068364592 and 641068364601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4350801 + ... + 4495731.

It is an arithmetic number, because the mean of its divisors is an integer number (29874543296).

Almost surely, 2^641068364646 is an apocalyptic number.

641068364646 is an abundant number, since it is smaller than the sum of its proper divisors (792909713562).

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

641068364646 is a wasteful number, since it uses less digits than its factorization.

641068364646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152897 (or 152894 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 54.

The spelling of 641068364646 in words is "six hundred forty-one billion, sixty-eight million, three hundred sixty-four thousand, six hundred forty-six".