216313355 has 16 divisors (see below), whose sum is σ = 278165664. Its totient is φ = 160903680.

The previous prime is 216313351. The next prime is 216313373. The reversal of 216313355 is 553313612.

216313355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 216313355 - 2² = 216313351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216313351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8276 + ... + 22385.

It is an arithmetic number, because the mean of its divisors is an integer number (17385354).

Almost surely, 2^216313355 is an apocalyptic number.

216313355 is a deficient number, since it is larger than the sum of its proper divisors (61852309).

216313355 is a wasteful number, since it uses less digits than its factorization.

216313355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30766.

The product of its digits is 8100, while the sum is 29.

The square root of 216313355 is about 14707.5951467261. The cubic root of 216313355 is about 600.2900033261.

Adding to 216313355 its reverse (553313612), we get a palindrome (769626967).

The spelling of 216313355 in words is "two hundred sixteen million, three hundred thirteen thousand, three hundred fifty-five".