20067066 has 12 divisors (see below), whose sum is σ = 43478682. Its totient is φ = 6689016.

The previous prime is 20067049. The next prime is 20067067. The reversal of 20067066 is 66076002.

It can be written as a sum of positive squares in only one way, i.e., 20061441 + 5625 = 4479^2 + 75^2 .

It is not an unprimeable number, because it can be changed into a prime (20067067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 557401 + ... + 557436.

Almost surely, 2^20067066 is an apocalyptic number.

20067066 is an abundant number, since it is smaller than the sum of its proper divisors (23411616).

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

20067066 is a wasteful number, since it uses less digits than its factorization.

20067066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114845 (or 1114842 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 20067066 is about 4479.6278863316. The cubic root of 20067066 is about 271.7448317030.

The spelling of 20067066 in words is "twenty million, sixty-seven thousand, sixty-six".