216103914 has 60 divisors (see below), whose sum is σ = 521050530. Its totient is φ = 64348560.

The previous prime is 216103897. The next prime is 216103957. The reversal of 216103914 is 419301612.

216103914 is a `hidden beast` number, since 2 + 1 + 610 + 39 + 14 = 666.

216103914 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 207792225 + 8311689 = 14415^2 + 2883^2 .

It is a super-3 number, since 3×216103914³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 6971079 + ... + 6971109.

Almost surely, 2^216103914 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216103914, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260525265).

216103914 is an abundant number, since it is smaller than the sum of its proper divisors (304946616).

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

216103914 is an frugal number, since it uses more digits than its factorization.

216103914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 49 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 216103914 is about 14700.4732576880. The cubic root of 216103914 is about 600.0962012414.

The spelling of 216103914 in words is "two hundred sixteen million, one hundred three thousand, nine hundred fourteen".