63660707613216 has 144 divisors (see below), whose sum is σ = 206913969085824. Its totient is φ = 18187308168192.

The previous prime is 63660707613211. The next prime is 63660707613233. The reversal of 63660707613216 is 61231670706636.

It is a happy number.

63660707613216 is a `hidden beast` number, since 6 + 3 + 6 + 6 + 0 + 7 + 0 + 7 + 613 + 2 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (63660707613211) 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, 23879725 + ... + 26411411.

It is an arithmetic number, because the mean of its divisors is an integer number (1436902563096).

Almost surely, 2^{63660707613216} is an apocalyptic number.

It is an amenable number.

63660707613216 is an abundant number, since it is smaller than the sum of its proper divisors (143253261472608).

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

63660707613216 is a wasteful number, since it uses less digits than its factorization.

63660707613216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544183 (or 2544172 counting only the distinct ones).

The product of its (nonzero) digits is 6858432, while the sum is 54.

The spelling of 63660707613216 in words is "sixty-three trillion, six hundred sixty billion, seven hundred seven million, six hundred thirteen thousand, two hundred sixteen".