216563317252810 has 32 divisors (see below), whose sum is σ = 450266405072832. Its totient is φ = 74117926759680.

The previous prime is 216563317252771. The next prime is 216563317252903. The reversal of 216563317252810 is 18252713365612.

It is a super-2 number, since 2×216563317252810² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57904628412 + ... + 57904632151.

It is an arithmetic number, because the mean of its divisors is an integer number (14070825158526).

Almost surely, 2^{216563317252810} is an apocalyptic number.

216563317252810 is an abundant number, since it is smaller than the sum of its proper divisors (233703087820022).

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

216563317252810 is a wasteful number, since it uses less digits than its factorization.

216563317252810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115809260598.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 216563317252810 in words is "two hundred sixteen trillion, five hundred sixty-three billion, three hundred seventeen million, two hundred fifty-two thousand, eight hundred ten".