216163071 has 18 divisors (see below), whose sum is σ = 323384880. Its totient is φ = 139134576.

The previous prime is 216163067. The next prime is 216163117. The reversal of 216163071 is 170361612.

216163071 is a `hidden beast` number, since 21 + 6 + 1 + 630 + 7 + 1 = 666.

It is not a de Polignac number, because 216163071 - 2² = 216163067 is a prime.

It is a super-3 number, since 3×216163071³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216163061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6711 + ... + 21848.

Almost surely, 2^216163071 is an apocalyptic number.

216163071 is a deficient number, since it is larger than the sum of its proper divisors (107221809).

216163071 is a wasteful number, since it uses less digits than its factorization.

216163071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28623 (or 28591 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 216163071 is about 14702.4851980881. The cubic root of 216163071 is about 600.1509536851.

The spelling of 216163071 in words is "two hundred sixteen million, one hundred sixty-three thousand, seventy-one".