2066664606 has 16 divisors (see below), whose sum is σ = 4137237648. Its totient is φ = 688236800.

The previous prime is 2066664601. The next prime is 2066664623. The reversal of 2066664606 is 6064666602.

It is a happy number.

It is a super-2 number, since 2×2066664606² = 8542205187386270472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066664601) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 155955 + ... + 168686.

It is an arithmetic number, because the mean of its divisors is an integer number (258577353).

Almost surely, 2^2066664606 is an apocalyptic number.

2066664606 is an abundant number, since it is smaller than the sum of its proper divisors (2070573042).

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

2066664606 is a wasteful number, since it uses less digits than its factorization.

2066664606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325707.

The product of its (nonzero) digits is 373248, while the sum is 42.

The square root of 2066664606 is about 45460.5829923022. The cubic root of 2066664606 is about 1273.7670214988.

The spelling of 2066664606 in words is "two billion, sixty-six million, six hundred sixty-four thousand, six hundred six".