216162563 has 8 divisors (see below), whose sum is σ = 230658000. Its totient is φ = 201979008.

The previous prime is 216162521. The next prime is 216162571. The reversal of 216162563 is 365261612.

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 216162563 - 2⁸ = 216162307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216162503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76538 + ... + 79311.

It is an arithmetic number, because the mean of its divisors is an integer number (28832250).

Almost surely, 2^216162563 is an apocalyptic number.

216162563 is a deficient number, since it is larger than the sum of its proper divisors (14495437).

216162563 is a wasteful number, since it uses less digits than its factorization.

216162563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155941.

The product of its digits is 12960, while the sum is 32.

The square root of 216162563 is about 14702.4679220871. The cubic root of 216162563 is about 600.1504835510.

The spelling of 216162563 in words is "two hundred sixteen million, one hundred sixty-two thousand, five hundred sixty-three".