216235064 has 16 divisors (see below), whose sum is σ = 406908600. Its totient is φ = 107726112.

The previous prime is 216235051. The next prime is 216235069. The reversal of 216235064 is 460532612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216235069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46574 + ... + 51005.

Almost surely, 2^216235064 is an apocalyptic number.

It is an amenable number.

216235064 is a deficient number, since it is larger than the sum of its proper divisors (190673536).

216235064 is a wasteful number, since it uses less digits than its factorization.

216235064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97862 (or 97858 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 216235064 is about 14704.9333218481. The cubic root of 216235064 is about 600.2175729457.

Adding to 216235064 its reverse (460532612), we get a palindrome (676767676).

The spelling of 216235064 in words is "two hundred sixteen million, two hundred thirty-five thousand, sixty-four".