216636102 has 12 divisors (see below), whose sum is σ = 469378260. Its totient is φ = 72212028.

The previous prime is 216636047. The next prime is 216636109. The reversal of 216636102 is 201636612.

216636102 is a `hidden beast` number, since 2 + 16 + 636 + 10 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216636109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6017652 + ... + 6017687.

It is an arithmetic number, because the mean of its divisors is an integer number (39114855).

Almost surely, 2^216636102 is an apocalyptic number.

216636102 is an abundant number, since it is smaller than the sum of its proper divisors (252742158).

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

216636102 is a wasteful number, since it uses less digits than its factorization.

216636102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12035347 (or 12035344 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 216636102 is about 14718.5631771583. The cubic root of 216636102 is about 600.5884061085.

The spelling of 216636102 in words is "two hundred sixteen million, six hundred thirty-six thousand, one hundred two".