216355152 has 120 divisors (see below), whose sum is σ = 612684000. Its totient is φ = 65754624.

The previous prime is 216355151. The next prime is 216355157. The reversal of 216355152 is 251553612.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216355151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1208599 + ... + 1208777.

It is an arithmetic number, because the mean of its divisors is an integer number (5105700).

Almost surely, 2^216355152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216355152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306342000).

216355152 is an abundant number, since it is smaller than the sum of its proper divisors (396328848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216355152 is a wasteful number, since it uses less digits than its factorization.

216355152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 346 counting only the distinct ones).

The product of its digits is 9000, while the sum is 30.

The square root of 216355152 is about 14709.0160105970. The cubic root of 216355152 is about 600.3286643778.

The spelling of 216355152 in words is "two hundred sixteen million, three hundred fifty-five thousand, one hundred fifty-two".