2066989530 has 64 divisors (see below), whose sum is σ = 5253838848. Its totient is φ = 519351360.

The previous prime is 2066989517. The next prime is 2066989541. The reversal of 2066989530 is 359896602.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2066989530.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23875 + ... + 68585.

It is an arithmetic number, because the mean of its divisors is an integer number (82091232).

Almost surely, 2^2066989530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2066989530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2626919424).

2066989530 is an abundant number, since it is smaller than the sum of its proper divisors (3186849318).

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

2066989530 is a wasteful number, since it uses less digits than its factorization.

2066989530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44811.

The product of its (nonzero) digits is 699840, while the sum is 48.

The square root of 2066989530 is about 45464.1565411699. The cubic root of 2066989530 is about 1273.8337724988.

The spelling of 2066989530 in words is "two billion, sixty-six million, nine hundred eighty-nine thousand, five hundred thirty".