216162543 has 8 divisors (see below), whose sum is σ = 288286000. Its totient is φ = 144073728.

The previous prime is 216162521. The next prime is 216162571. The reversal of 216162543 is 345261612.

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

It is not a de Polignac number, because 216162543 - 2¹⁴ = 216146159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 216162543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216162503) 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, 15663 + ... + 26031.

It is an arithmetic number, because the mean of its divisors is an integer number (36035750).

Almost surely, 2^216162543 is an apocalyptic number.

216162543 is a deficient number, since it is larger than the sum of its proper divisors (72123457).

216162543 is a wasteful number, since it uses less digits than its factorization.

216162543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17321.

The product of its digits is 8640, while the sum is 30.

The square root of 216162543 is about 14702.4672419292. The cubic root of 216162543 is about 600.1504650417.

The spelling of 216162543 in words is "two hundred sixteen million, one hundred sixty-two thousand, five hundred forty-three".