266666030 has 64 divisors (see below), whose sum is σ = 517957632. Its totient is φ = 98651520.

The previous prime is 266666011. The next prime is 266666041. The reversal of 266666030 is 30666662.

It is a happy number.

It is a super-2 number, since 2×266666030² = 142221543111921800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 768317 + ... + 768663.

It is an arithmetic number, because the mean of its divisors is an integer number (8093088).

Almost surely, 2^266666030 is an apocalyptic number.

266666030 is a deficient number, since it is larger than the sum of its proper divisors (251291602).

266666030 is a wasteful number, since it uses less digits than its factorization.

266666030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489.

The product of its (nonzero) digits is 46656, while the sum is 35.

The square root of 266666030 is about 16329.9121246870. The cubic root of 266666030 is about 643.6590774909.

The spelling of 266666030 in words is "two hundred sixty-six million, six hundred sixty-six thousand, thirty".