6484666620 has 96 divisors (see below), whose sum is σ = 18833080896. Its totient is φ = 1665792000.

The previous prime is 6484666603. The next prime is 6484666631. The reversal of 6484666620 is 266664846.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6484666620.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209760 + ... + 238680.

It is an arithmetic number, because the mean of its divisors is an integer number (196177926).

Almost surely, 2^6484666620 is an apocalyptic number.

6484666620 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 6484666620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9416540448).

6484666620 is an abundant number, since it is smaller than the sum of its proper divisors (12348414276).

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

6484666620 is a wasteful number, since it uses less digits than its factorization.

6484666620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29071 (or 29069 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 48.

The square root of 6484666620 is about 80527.4277498046. The cubic root of 6484666620 is about 1864.7869354835.

The spelling of 6484666620 in words is "six billion, four hundred eighty-four million, six hundred sixty-six thousand, six hundred twenty".