2066006500 has 48 divisors (see below), whose sum is σ = 4533774336. Its totient is φ = 822444000.

The previous prime is 2066006497. The next prime is 2066006519. The reversal of 2066006500 is 56006602.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95709 + ... + 115291.

It is an arithmetic number, because the mean of its divisors is an integer number (94453632).

Almost surely, 2^2066006500 is an apocalyptic number.

2066006500 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 2066006500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2266887168).

2066006500 is an abundant number, since it is smaller than the sum of its proper divisors (2467767836).

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

2066006500 is a wasteful number, since it uses less digits than its factorization.

2066006500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19813 (or 19801 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 2066006500 is about 45453.3442113999. The cubic root of 2066006500 is about 1273.6318015712.

The spelling of 2066006500 in words is "two billion, sixty-six million, six thousand, five hundred".