216188812255302 has 48 divisors (see below), whose sum is σ = 475112122405440. Its totient is φ = 71034678314496.

The previous prime is 216188812255253. The next prime is 216188812255363. The reversal of 216188812255302 is 203552218881612.

216188812255302 is a `hidden beast` number, since 2 + 1 + 6 + 1 + 8 + 8 + 81 + 2 + 2 + 553 + 0 + 2 = 666.

It is a super-2 number, since 2×216188812255302² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 123134443 + ... + 124877814.

It is an arithmetic number, because the mean of its divisors is an integer number (9898169216780).

Almost surely, 2^{216188812255302} is an apocalyptic number.

216188812255302 is an abundant number, since it is smaller than the sum of its proper divisors (258923310150138).

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

216188812255302 is a wasteful number, since it uses less digits than its factorization.

216188812255302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248012957 (or 248012954 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 54.

The spelling of 216188812255302 in words is "two hundred sixteen trillion, one hundred eighty-eight billion, eight hundred twelve million, two hundred fifty-five thousand, three hundred two".