2066326864 has 60 divisors (see below), whose sum is σ = 4783078164. Its totient is φ = 861622272.

The previous prime is 2066326861. The next prime is 2066326891. The reversal of 2066326864 is 4686236602.

It can be written as a sum of positive squares in 2 ways, for example, as 1694145600 + 372181264 = 41160^2 + 19292^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2066326864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066326861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6609 + ... + 64624.

Almost surely, 2^2066326864 is an apocalyptic number.

It is an amenable number.

2066326864 is an abundant number, since it is smaller than the sum of its proper divisors (2716751300).

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

2066326864 is a wasteful number, since it uses less digits than its factorization.

2066326864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71292 (or 71279 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 43.

The square root of 2066326864 is about 45456.8681719276. The cubic root of 2066326864 is about 1273.6976298072.

The spelling of 2066326864 in words is "two billion, sixty-six million, three hundred twenty-six thousand, eight hundred sixty-four".