216203264 has 34 divisors (see below), whose sum is σ = 432534300. Its totient is φ = 108068864.

The previous prime is 216203249. The next prime is 216203279. The reversal of 216203264 is 462302612.

It is an interprime number because it is at equal distance from previous prime (216203249) and next prime (216203279).

It is a zygodrome in base 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63887 + ... + 67185.

Almost surely, 2^216203264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216203264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216267150).

216203264 is an abundant number, since it is smaller than the sum of its proper divisors (216331036).

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

216203264 is an frugal number, since it uses more digits than its factorization.

216203264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3331 (or 3301 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 216203264 is about 14703.8520123130. The cubic root of 216203264 is about 600.1881484015.

Adding to 216203264 its reverse (462302612), we get a palindrome (678505876).

The spelling of 216203264 in words is "two hundred sixteen million, two hundred three thousand, two hundred sixty-four".