6334453620 has 144 divisors (see below), whose sum is σ = 21087900288. Its totient is φ = 1526350080.

The previous prime is 6334453597. The next prime is 6334453627. The reversal of 6334453620 is 263544336.

6334453620 is a `hidden beast` number, since 63 + 3 + 44 + 536 + 20 = 666.

It is a super-2 number, since 2×6334453620² = 80250605327862208800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6334453627) 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, 321082 + ... + 340238.

It is an arithmetic number, because the mean of its divisors is an integer number (146443752).

Almost surely, 2^6334453620 is an apocalyptic number.

6334453620 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 6334453620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10543950144).

6334453620 is an abundant number, since it is smaller than the sum of its proper divisors (14753446668).

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

6334453620 is a wasteful number, since it uses less digits than its factorization.

6334453620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19350 (or 19345 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 36.

The square root of 6334453620 is about 79589.2808109233. The cubic root of 6334453620 is about 1850.2754515589.

Adding to 6334453620 its reverse (263544336), we get a palindrome (6597997956).

It can be divided in two parts, 63344 and 53620, that added together give a square (116964 = 342²).

The spelling of 6334453620 in words is "six billion, three hundred thirty-four million, four hundred fifty-three thousand, six hundred twenty".