63640065640012 has 24 divisors (see below), whose sum is σ = 117231961985600. Its totient is φ = 30145226847696.

The previous prime is 63640065640003. The next prime is 63640065640091. The reversal of 63640065640012 is 21004656004636.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55570039 + ... + 56703697.

Almost surely, 2^{63640065640012} is an apocalyptic number.

It is an amenable number.

63640065640012 is a deficient number, since it is larger than the sum of its proper divisors (53591896345588).

63640065640012 is a wasteful number, since it uses less digits than its factorization.

63640065640012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872325 (or 1872323 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 63640065640012 in words is "sixty-three trillion, six hundred forty billion, sixty-five million, six hundred forty thousand, twelve".