216776120 has 32 divisors (see below), whose sum is σ = 532087920. Its totient is φ = 78827520.

The previous prime is 216776113. The next prime is 216776123. The reversal of 216776120 is 21677612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216776123) 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, 245897 + ... + 246776.

Almost surely, 2^216776120 is an apocalyptic number.

216776120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216776120 is an abundant number, since it is smaller than the sum of its proper divisors (315311800).

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

216776120 is a wasteful number, since it uses less digits than its factorization.

216776120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492695 (or 492691 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 216776120 is about 14723.3189193198. The cubic root of 216776120 is about 600.7177706294.

It can be divided in two parts, 2167 and 76120, that added together give a palindrome (78287).

The spelling of 216776120 in words is "two hundred sixteen million, seven hundred seventy-six thousand, one hundred twenty".