216052369 has 8 divisors (see below), whose sum is σ = 232848000. Its totient is φ = 199281936.

The previous prime is 216052357. The next prime is 216052379. The reversal of 216052369 is 963250612.

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 216052369 - 2⁷ = 216052241 is a prime.

It is a super-2 number, since 2×216052369² = 93357252301024322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216052379) 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, 13944 + ... + 25030.

It is an arithmetic number, because the mean of its divisors is an integer number (29106000).

Almost surely, 2^216052369 is an apocalyptic number.

It is an amenable number.

216052369 is a deficient number, since it is larger than the sum of its proper divisors (16795631).

216052369 is a wasteful number, since it uses less digits than its factorization.

216052369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12599.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 216052369 is about 14698.7199782838. The cubic root of 216052369 is about 600.0484858966.

The spelling of 216052369 in words is "two hundred sixteen million, fifty-two thousand, three hundred sixty-nine".