216315356 has 12 divisors (see below), whose sum is σ = 379218840. Its totient is φ = 107967120.

The previous prime is 216315353. The next prime is 216315371. The reversal of 216315356 is 653513612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216315353) 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, 45071 + ... + 49638.

It is an arithmetic number, because the mean of its divisors is an integer number (31601570).

Almost surely, 2^216315356 is an apocalyptic number.

It is an amenable number.

216315356 is a deficient number, since it is larger than the sum of its proper divisors (162903484).

216315356 is a wasteful number, since it uses less digits than its factorization.

216315356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95284 (or 95282 counting only the distinct ones).

The product of its digits is 16200, while the sum is 32.

The square root of 216315356 is about 14707.6631726457. The cubic root of 216315356 is about 600.2918543084.

Adding to 216315356 its reverse (653513612), we get a palindrome (869828968).

The spelling of 216315356 in words is "two hundred sixteen million, three hundred fifteen thousand, three hundred fifty-six".