63105852972816 has 80 divisors (see below), whose sum is σ = 185349662963520. Its totient is φ = 20546091659520.

The previous prime is 63105852972809. The next prime is 63105852972881. The reversal of 63105852972816 is 61827925850136.

63105852972816 is a `hidden beast` number, since 6 + 3 + 1 + 0 + 585 + 29 + 7 + 28 + 1 + 6 = 666.

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, 1698567045 + ... + 1698604196.

It is an arithmetic number, because the mean of its divisors is an integer number (2316870787044).

Almost surely, 2^{63105852972816} is an apocalyptic number.

It is an amenable number.

63105852972816 is an abundant number, since it is smaller than the sum of its proper divisors (122243809990704).

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

63105852972816 is a wasteful number, since it uses less digits than its factorization.

63105852972816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3397171301 (or 3397171289 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 63.

The spelling of 63105852972816 in words is "sixty-three trillion, one hundred five billion, eight hundred fifty-two million, nine hundred seventy-two thousand, eight hundred sixteen".