6620469120 has 512 divisors, whose sum is σ = 25662873600. Its totient is φ = 1605795840.

The previous prime is 6620469091. The next prime is 6620469139. The reversal of 6620469120 is 219640266.

6620469120 is a `hidden beast` number, since 6 + 620 + 4 + 6 + 9 + 1 + 20 = 666.

It is a super-2 number, since 2×6620469120² = 87661222737747148800, 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 an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9106197 + ... + 9106923.

It is an arithmetic number, because the mean of its divisors is an integer number (50122800).

Almost surely, 2^6620469120 is an apocalyptic number.

6620469120 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 6620469120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12831436800).

6620469120 is an abundant number, since it is smaller than the sum of its proper divisors (19042404480).

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

6620469120 is a wasteful number, since it uses less digits than its factorization.

6620469120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803 (or 785 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 6620469120 is about 81366.2652454935. The cubic root of 6620469120 is about 1877.7146214794.

The spelling of 6620469120 in words is "six billion, six hundred twenty million, four hundred sixty-nine thousand, one hundred twenty".