216103104 has 84 divisors (see below), whose sum is σ = 707922384. Its totient is φ = 61742592.

The previous prime is 216103103. The next prime is 216103109. The reversal of 216103104 is 401301612.

It is a happy number.

216103104 is a `hidden beast` number, since 21 + 610 + 31 + 0 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (84).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (216103103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22767 + ... + 30830.

Almost surely, 2^216103104 is an apocalyptic number.

216103104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

216103104 is an abundant number, since it is smaller than the sum of its proper divisors (491819280).

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

216103104 is a wasteful number, since it uses less digits than its factorization.

216103104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53622 (or 53609 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 216103104 is about 14700.4457075287. The cubic root of 216103104 is about 600.0954514809.

Adding to 216103104 its reverse (401301612), we get a palindrome (617404716).

The spelling of 216103104 in words is "two hundred sixteen million, one hundred three thousand, one hundred four".