2066434830 has 192 divisors, whose sum is σ = 5904145728. Its totient is φ = 499322880.

The previous prime is 2066434823. The next prime is 2066434873. The reversal of 2066434830 is 384346602.

It is a happy number.

2066434830 is a `hidden beast` number, since 2 + 0 + 6 + 643 + 4 + 8 + 3 + 0 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9793425 + ... + 9793635.

It is an arithmetic number, because the mean of its divisors is an integer number (30750759).

Almost surely, 2^2066434830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2066434830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2952072864).

2066434830 is an abundant number, since it is smaller than the sum of its proper divisors (3837710898).

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

2066434830 is a wasteful number, since it uses less digits than its factorization.

2066434830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 2066434830 is about 45458.0557217310. The cubic root of 2066434830 is about 1273.7198130745.

The spelling of 2066434830 in words is "two billion, sixty-six million, four hundred thirty-four thousand, eight hundred thirty".