6455330220 has 24 divisors (see below), whose sum is σ = 18074924784. Its totient is φ = 1721421376.

The previous prime is 6455330209. The next prime is 6455330257. The reversal of 6455330220 is 220335546.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53794359 + ... + 53794478.

It is an arithmetic number, because the mean of its divisors is an integer number (753121866).

Almost surely, 2^6455330220 is an apocalyptic number.

6455330220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6455330220 is an abundant number, since it is smaller than the sum of its proper divisors (11619594564).

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

6455330220 is a wasteful number, since it uses less digits than its factorization.

6455330220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107588849 (or 107588847 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 6455330220 is about 80345.0696682752. The cubic root of 6455330220 is about 1861.9706077352.

Adding to 6455330220 its reverse (220335546), we get a palindrome (6675665766).

The spelling of 6455330220 in words is "six billion, four hundred fifty-five million, three hundred thirty thousand, two hundred twenty".