63216120 has 128 divisors (see below), whose sum is σ = 209744640. Its totient is φ = 15114240.

The previous prime is 63216071. The next prime is 63216151. The reversal of 63216120 is 2161236.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109272 + ... + 109848.

It is an arithmetic number, because the mean of its divisors is an integer number (1638630).

Almost surely, 2^63216120 is an apocalyptic number.

63216120 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63216120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104872320).

63216120 is an abundant number, since it is smaller than the sum of its proper divisors (146528520).

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

63216120 is a wasteful number, since it uses less digits than its factorization.

63216120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685 (or 681 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 63216120 is about 7950.8565576295. The cubic root of 63216120 is about 398.3602035215.

Adding to 63216120 its reverse (2161236), we get a palindrome (65377356).

It can be divided in two parts, 63216 and 120, that added together give a palindrome (63336).

The spelling of 63216120 in words is "sixty-three million, two hundred sixteen thousand, one hundred twenty".