63531645151216 has 80 divisors (see below), whose sum is σ = 138171053281248. Its totient is φ = 28052625536000.

The previous prime is 63531645151199. The next prime is 63531645151229. The reversal of 63531645151216 is 61215154613536.

It is a self number, because there is not a number n which added to its sum of digits gives 63531645151216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32774971 + ... + 34659226.

Almost surely, 2^{63531645151216} is an apocalyptic number.

It is an amenable number.

63531645151216 is an abundant number, since it is smaller than the sum of its proper divisors (74639408130032).

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

63531645151216 is a wasteful number, since it uses less digits than its factorization.

63531645151216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67434370 (or 67434364 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 49.

The spelling of 63531645151216 in words is "sixty-three trillion, five hundred thirty-one billion, six hundred forty-five million, one hundred fifty-one thousand, two hundred sixteen".