206307066 has 16 divisors (see below), whose sum is σ = 471559104. Its totient is φ = 58944864.

The previous prime is 206307061. The next prime is 206307071. The reversal of 206307066 is 660703602.

It is an interprime number because it is at equal distance from previous prime (206307061) and next prime (206307071).

It is not an unprimeable number, because it can be changed into a prime (206307061) 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, 2455995 + ... + 2456078.

It is an arithmetic number, because the mean of its divisors is an integer number (29472444).

Almost surely, 2^206307066 is an apocalyptic number.

206307066 is an abundant number, since it is smaller than the sum of its proper divisors (265252038).

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

206307066 is a wasteful number, since it uses less digits than its factorization.

206307066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4912085.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 206307066 is about 14363.3932620394. The cubic root of 206307066 is about 590.8873614717.

The spelling of 206307066 in words is "two hundred six million, three hundred seven thousand, sixty-six".