6454112220 has 144 divisors (see below), whose sum is σ = 20760431328. Its totient is φ = 1617408000.

The previous prime is 6454112213. The next prime is 6454112221. The reversal of 6454112220 is 222114546.

6454112220 is a `hidden beast` number, since 645 + 4 + 1 + 12 + 2 + 2 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6454112221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2866095 + ... + 2868345.

It is an arithmetic number, because the mean of its divisors is an integer number (144169662).

Almost surely, 2^6454112220 is an apocalyptic number.

6454112220 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 6454112220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10380215664).

6454112220 is an abundant number, since it is smaller than the sum of its proper divisors (14306319108).

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

6454112220 is a wasteful number, since it uses less digits than its factorization.

6454112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3220 (or 3215 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 6454112220 is about 80337.4895052117. The cubic root of 6454112220 is about 1861.8534940337.

Adding to 6454112220 its reverse (222114546), we get a palindrome (6676226766).

The spelling of 6454112220 in words is "six billion, four hundred fifty-four million, one hundred twelve thousand, two hundred twenty".