216586863036 has 96 divisors (see below), whose sum is σ = 620402388480. Its totient is φ = 64994510592.

The previous prime is 216586863029. The next prime is 216586863061. The reversal of 216586863036 is 630368685612.

It is a happy number.

216586863036 is a `hidden beast` number, since 21 + 6 + 586 + 8 + 6 + 3 + 0 + 36 = 666.

216586863036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2522266 + ... + 2606721.

It is an arithmetic number, because the mean of its divisors is an integer number (6462524880).

Almost surely, 2^216586863036 is an apocalyptic number.

It is an amenable number.

216586863036 is an abundant number, since it is smaller than the sum of its proper divisors (403815525444).

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

216586863036 is a wasteful number, since it uses less digits than its factorization.

216586863036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5129040 (or 5129032 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 54.

The spelling of 216586863036 in words is "two hundred sixteen billion, five hundred eighty-six million, eight hundred sixty-three thousand, thirty-six".