63966140196642 has 48 divisors (see below), whose sum is σ = 150918298128000. Its totient is φ = 19503287752032.

The previous prime is 63966140196611. The next prime is 63966140196643. The reversal of 63966140196642 is 24669104166936.

63966140196642 is a `hidden beast` number, since 6 + 3 + 9 + 6 + 614 + 0 + 1 + 9 + 6 + 6 + 4 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 63966140196642.

It is not an unprimeable number, because it can be changed into a prime (63966140196643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3224740042 + ... + 3224759877.

It is an arithmetic number, because the mean of its divisors is an integer number (3144131211000).

Almost surely, 2^{63966140196642} is an apocalyptic number.

63966140196642 is an abundant number, since it is smaller than the sum of its proper divisors (86952157931358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63966140196642 is a wasteful number, since it uses less digits than its factorization.

63966140196642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6449499975 (or 6449499972 counting only the distinct ones).

The product of its (nonzero) digits is 60466176, while the sum is 63.

The spelling of 63966140196642 in words is "sixty-three trillion, nine hundred sixty-six billion, one hundred forty million, one hundred ninety-six thousand, six hundred forty-two".