65641351263212 has 6 divisors (see below), whose sum is σ = 114872364710628. Its totient is φ = 32820675631604.

The previous prime is 65641351263119. The next prime is 65641351263223. The reversal of 65641351263212 is 21236215314656.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8205168907898 + ... + 8205168907905.

It is an arithmetic number, because the mean of its divisors is an integer number (19145394118438).

Almost surely, 2^{65641351263212} is an apocalyptic number.

It is an amenable number.

65641351263212 is a deficient number, since it is larger than the sum of its proper divisors (49231013447416).

65641351263212 is a wasteful number, since it uses less digits than its factorization.

65641351263212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16410337815807 (or 16410337815805 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 47.

Adding to 65641351263212 its reverse (21236215314656), we get a palindrome (86877566577868).

The spelling of 65641351263212 in words is "sixty-five trillion, six hundred forty-one billion, three hundred fifty-one million, two hundred sixty-three thousand, two hundred twelve".