2066066 has 4 divisors (see below), whose sum is σ = 3099102. Its totient is φ = 1033032.

The previous prime is 2066059. The next prime is 2066069. The reversal of 2066066 is 6606602.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2042041 + 24025 = 1429^2 + 155^2 .

It is not an unprimeable number, because it can be changed into a prime (2066069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 516515 + ... + 516518.

2^2066066 is an apocalyptic number.

2066066 is a deficient number, since it is larger than the sum of its proper divisors (1033036).

2066066 is a wasteful number, since it uses less digits than its factorization.

2066066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033035.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 2066066 is about 1437.3816473018. The cubic root of 2066066 is about 127.3644028116.

The spelling of 2066066 in words is "two million, sixty-six thousand, sixty-six", and thus it is an eban number.