641332315515212 has 24 divisors (see below), whose sum is σ = 1151053330322112. Its totient is φ = 312478273353600.

The previous prime is 641332315515209. The next prime is 641332315515233. The reversal of 641332315515212 is 212515513233146.

It is a super-2 number, since 2×641332315515212² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2292100964 + ... + 2292380747.

It is an arithmetic number, because the mean of its divisors is an integer number (47960555430088).

Almost surely, 2^{641332315515212} is an apocalyptic number.

It is an amenable number.

641332315515212 is a deficient number, since it is larger than the sum of its proper divisors (509721014806900).

641332315515212 is a wasteful number, since it uses less digits than its factorization.

641332315515212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4584482609 (or 4584482607 counting only the distinct ones).

The product of its digits is 648000, while the sum is 44.

Adding to 641332315515212 its reverse (212515513233146), we get a palindrome (853847828748358).

The spelling of 641332315515212 in words is "six hundred forty-one trillion, three hundred thirty-two billion, three hundred fifteen million, five hundred fifteen thousand, two hundred twelve".