2066404608 has 180 divisors, whose sum is σ = 6202885920. Its totient is φ = 684205056.

The previous prime is 2066404607. The next prime is 2066404619. The reversal of 2066404608 is 8064046602.

It is a happy number.

2066404608 is a `hidden beast` number, since 2 + 0 + 6 + 6 + 40 + 4 + 608 = 666.

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 (2066404607) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4706853 + ... + 4707291.

Almost surely, 2^2066404608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2066404608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3101442960).

2066404608 is an abundant number, since it is smaller than the sum of its proper divisors (4136481312).

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

2066404608 is an equidigital number, since it uses as much as digits as its factorization.

2066404608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694 (or 671 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 2066404608 is about 45457.7233041867. The cubic root of 2066404608 is about 1273.7136035799.

The spelling of 2066404608 in words is "two billion, sixty-six million, four hundred four thousand, six hundred eight".