641135056612 has 48 divisors (see below), whose sum is σ = 1247987865600. Its totient is φ = 286814230560.

The previous prime is 641135056579. The next prime is 641135056613. The reversal of 641135056612 is 216650531146.

It is a happy number.

It is a super-2 number, since 2×641135056612² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (641135056613) 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 in 15 ways as a sum of consecutive naturals, for example, 2183314 + ... + 2459497.

It is an arithmetic number, because the mean of its divisors is an integer number (25999747200).

Almost surely, 2^641135056612 is an apocalyptic number.

It is an amenable number.

641135056612 is a deficient number, since it is larger than the sum of its proper divisors (606852808988).

641135056612 is a wasteful number, since it uses less digits than its factorization.

641135056612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4642936 (or 4642934 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

Adding to 641135056612 its reverse (216650531146), we get a palindrome (857785587758).

The spelling of 641135056612 in words is "six hundred forty-one billion, one hundred thirty-five million, fifty-six thousand, six hundred twelve".