2020006620 has 96 divisors (see below), whose sum is σ = 6291210240. Its totient is φ = 538090560.

The previous prime is 2020006529. The next prime is 2020006621. The reversal of 2020006620 is 266000202.

2020006620 is a `hidden beast` number, since 2 + 0 + 2 + 0 + 0 + 0 + 662 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2020006593 and 2020006602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020006621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 793069 + ... + 795611.

It is an arithmetic number, because the mean of its divisors is an integer number (65533440).

Almost surely, 2^2020006620 is an apocalyptic number.

2020006620 is a gapful number since it is divisible by the number (20) 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 2020006620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3145605120).

2020006620 is an abundant number, since it is smaller than the sum of its proper divisors (4271203620).

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

2020006620 is a wasteful number, since it uses less digits than its factorization.

2020006620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4032 (or 4024 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2020006620 is about 44944.4837549615. The cubic root of 2020006620 is about 1264.1082457838.

Adding to 2020006620 its reverse (266000202), we get a palindrome (2286006822).

The spelling of 2020006620 in words is "two billion, twenty million, six thousand, six hundred twenty".