2066001630 has 128 divisors (see below), whose sum is σ = 6223896576. Its totient is φ = 426384000.

The previous prime is 2066001617. The next prime is 2066001793. The reversal of 2066001630 is 361006602.

It is a super-3 number, since 3×2066001630³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2066001630.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 345849 + ... + 351771.

It is an arithmetic number, because the mean of its divisors is an integer number (48624192).

Almost surely, 2^2066001630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2066001630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3111948288).

2066001630 is an abundant number, since it is smaller than the sum of its proper divisors (4157894946).

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

2066001630 is a wasteful number, since it uses less digits than its factorization.

2066001630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6102.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 2066001630 is about 45453.2906399526. The cubic root of 2066001630 is about 1273.6308008335.

The spelling of 2066001630 in words is "two billion, sixty-six million, one thousand, six hundred thirty".