2643385066 has 32 divisors (see below), whose sum is σ = 4773196800. Its totient is φ = 1096326000.

The previous prime is 2643385037. The next prime is 2643385081. The reversal of 2643385066 is 6605833462.

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 15 ways as a sum of consecutive naturals, for example, 40885 + ... + 83416.

It is an arithmetic number, because the mean of its divisors is an integer number (149162400).

Almost surely, 2^2643385066 is an apocalyptic number.

2643385066 is a deficient number, since it is larger than the sum of its proper divisors (2129811734).

2643385066 is a wasteful number, since it uses less digits than its factorization.

2643385066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124355 (or 124341 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 43.

The square root of 2643385066 is about 51413.8606408817. The cubic root of 2643385066 is about 1382.6751068059.

The spelling of 2643385066 in words is "two billion, six hundred forty-three million, three hundred eighty-five thousand, sixty-six".