216268871 has 8 divisors (see below), whose sum is σ = 266177184. Its totient is φ = 171113760.

The previous prime is 216268859. The next prime is 216268873. The reversal of 216268871 is 178862612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 216268871 - 2²² = 212074567 is a prime.

It is a super-2 number, since 2×216268871² = 93544449127229282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216268873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1188200 + ... + 1188381.

It is an arithmetic number, because the mean of its divisors is an integer number (33272148).

Almost surely, 2^216268871 is an apocalyptic number.

216268871 is a deficient number, since it is larger than the sum of its proper divisors (49908313).

216268871 is a wasteful number, since it uses less digits than its factorization.

216268871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2376601.

The product of its digits is 64512, while the sum is 41.

The square root of 216268871 is about 14706.0827891046. The cubic root of 216268871 is about 600.2488514037.

The spelling of 216268871 in words is "two hundred sixteen million, two hundred sixty-eight thousand, eight hundred seventy-one".