216300155 has 8 divisors (see below), whose sum is σ = 264457872. Its totient is φ = 169775008.

The previous prime is 216300143. The next prime is 216300167. The reversal of 216300155 is 551003612.

It is an interprime number because it is at equal distance from previous prime (216300143) and next prime (216300167).

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 216300155 - 2⁸ = 216299899 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 216300155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407849 + ... + 408378.

It is an arithmetic number, because the mean of its divisors is an integer number (33057234).

Almost surely, 2^216300155 is an apocalyptic number.

216300155 is a deficient number, since it is larger than the sum of its proper divisors (48157717).

216300155 is an equidigital number, since it uses as much as digits as its factorization.

216300155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816285.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 216300155 is about 14707.1463921456. The cubic root of 216300155 is about 600.2777926618.

Adding to 216300155 its reverse (551003612), we get a palindrome (767303767).

The spelling of 216300155 in words is "two hundred sixteen million, three hundred thousand, one hundred fifty-five".