216550463 has 8 divisors (see below), whose sum is σ = 220370640. Its totient is φ = 212762880.

The previous prime is 216550387. The next prime is 216550493. The reversal of 216550463 is 364055612.

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 216550463 - 2²⁰ = 215501887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216550493) 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, 5453 + ... + 21513.

It is an arithmetic number, because the mean of its divisors is an integer number (27546330).

Almost surely, 2^216550463 is an apocalyptic number.

216550463 is a deficient number, since it is larger than the sum of its proper divisors (3820177).

216550463 is a wasteful number, since it uses less digits than its factorization.

216550463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16297.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 216550463 is about 14715.6536721955. The cubic root of 216550463 is about 600.5092556052.

The spelling of 216550463 in words is "two hundred sixteen million, five hundred fifty thousand, four hundred sixty-three".