63618220516 has 12 divisors (see below), whose sum is σ = 113218867440. Its totient is φ = 31269972680.

The previous prime is 63618220507. The next prime is 63618220517. The reversal of 63618220516 is 61502281636.

It is not an unprimeable number, because it can be changed into a prime (63618220517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134784130 + ... + 134784601.

It is an arithmetic number, because the mean of its divisors is an integer number (9434905620).

Almost surely, 2^63618220516 is an apocalyptic number.

It is an amenable number.

63618220516 is a deficient number, since it is larger than the sum of its proper divisors (49600646924).

63618220516 is a wasteful number, since it uses less digits than its factorization.

63618220516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269568794 (or 269568792 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 63618220516 in words is "sixty-three billion, six hundred eighteen million, two hundred twenty thousand, five hundred sixteen".