216265763 has 6 divisors (see below), whose sum is σ = 251574516. Its totient is φ = 185370612.

The previous prime is 216265759. The next prime is 216265769. The reversal of 216265763 is 367562612.

It is not a de Polignac number, because 216265763 - 2² = 216265759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216265769) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2206745 + ... + 2206842.

It is an arithmetic number, because the mean of its divisors is an integer number (41929086).

Almost surely, 2^216265763 is an apocalyptic number.

216265763 is a deficient number, since it is larger than the sum of its proper divisors (35308753).

216265763 is an equidigital number, since it uses as much as digits as its factorization.

216265763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4413601 (or 4413594 counting only the distinct ones).

The product of its digits is 90720, while the sum is 38.

The square root of 216265763 is about 14705.9771181653. The cubic root of 216265763 is about 600.2459759978.

The spelling of 216265763 in words is "two hundred sixteen million, two hundred sixty-five thousand, seven hundred sixty-three".