216244251160 has 128 divisors (see below), whose sum is σ = 560151936000. Its totient is φ = 73596824064.

The previous prime is 216244251127. The next prime is 216244251187. The reversal of 216244251160 is 61152442612.

It is a super-2 number, since 2×216244251160² (a number of 23 digits) contains 22 as substring.

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, 22244781 + ... + 22254499.

It is an arithmetic number, because the mean of its divisors is an integer number (4376187000).

Almost surely, 2^216244251160 is an apocalyptic number.

216244251160 is a gapful number since it is divisible by the number (20) 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 216244251160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280075968000).

216244251160 is an abundant number, since it is smaller than the sum of its proper divisors (343907684840).

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

216244251160 is a wasteful number, since it uses less digits than its factorization.

216244251160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10313 (or 10309 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

Adding to 216244251160 its reverse (61152442612), we get a palindrome (277396693772).

The spelling of 216244251160 in words is "two hundred sixteen billion, two hundred forty-four million, two hundred fifty-one thousand, one hundred sixty".