216965063 has 16 divisors (see below), whose sum is σ = 256935936. Its totient is φ = 179284320.

The previous prime is 216965059. The next prime is 216965081. The reversal of 216965063 is 360569612.

It is a cyclic number.

It is not a de Polignac number, because 216965063 - 2² = 216965059 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216965083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59645 + ... + 63177.

It is an arithmetic number, because the mean of its divisors is an integer number (16058496).

Almost surely, 2^216965063 is an apocalyptic number.

216965063 is a deficient number, since it is larger than the sum of its proper divisors (39970873).

216965063 is a wasteful number, since it uses less digits than its factorization.

216965063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3854.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 216965063 is about 14729.7339758734. The cubic root of 216965063 is about 600.8922493460.

The spelling of 216965063 in words is "two hundred sixteen million, nine hundred sixty-five thousand, sixty-three".