216533414 has 8 divisors (see below), whose sum is σ = 329648088. Its totient is φ = 106650720.

The previous prime is 216533411. The next prime is 216533417. The reversal of 216533414 is 414335612.

It is an interprime number because it is at equal distance from previous prime (216533411) and next prime (216533417).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216533411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 807827 + ... + 808094.

It is an arithmetic number, because the mean of its divisors is an integer number (41206011).

Almost surely, 2^216533414 is an apocalyptic number.

216533414 is a deficient number, since it is larger than the sum of its proper divisors (113114674).

216533414 is a wasteful number, since it uses less digits than its factorization.

216533414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615990.

The product of its digits is 8640, while the sum is 29.

The square root of 216533414 is about 14715.0743796965. The cubic root of 216533414 is about 600.4934958437.

The spelling of 216533414 in words is "two hundred sixteen million, five hundred thirty-three thousand, four hundred fourteen".