641246304404 has 6 divisors (see below), whose sum is σ = 1122181032714. Its totient is φ = 320623152200.

The previous prime is 641246304359. The next prime is 641246304427. The reversal of 641246304404 is 404403642146.

It can be written as a sum of positive squares in only one way, i.e., 358968739600 + 282277564804 = 599140^2 + 531298^2 .

It is a super-2 number, since 2×641246304404² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80155788047 + ... + 80155788054.

It is an arithmetic number, because the mean of its divisors is an integer number (187030172119).

Almost surely, 2^641246304404 is an apocalyptic number.

It is an amenable number.

641246304404 is a deficient number, since it is larger than the sum of its proper divisors (480934728310).

641246304404 is a wasteful number, since it uses less digits than its factorization.

641246304404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160311576105 (or 160311576103 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 38.

The spelling of 641246304404 in words is "six hundred forty-one billion, two hundred forty-six million, three hundred four thousand, four hundred four".