216068303 has 4 divisors (see below), whose sum is σ = 235710888. Its totient is φ = 196425720.

The previous prime is 216068287. The next prime is 216068311. The reversal of 216068303 is 303860612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 216068303 - 2⁴ = 216068287 is a prime.

It is a super-2 number, since 2×216068303² = 93371023122599618, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216068383) 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, 9821276 + ... + 9821297.

It is an arithmetic number, because the mean of its divisors is an integer number (58927722).

Almost surely, 2^216068303 is an apocalyptic number.

216068303 is a deficient number, since it is larger than the sum of its proper divisors (19642585).

216068303 is a wasteful number, since it uses less digits than its factorization.

216068303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19642584.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 216068303 is about 14699.2619882768. The cubic root of 216068303 is about 600.0632368535.

The spelling of 216068303 in words is "two hundred sixteen million, sixty-eight thousand, three hundred three".