66433266 has 12 divisors (see below), whose sum is σ = 143938782. Its totient is φ = 22144416.

The previous prime is 66433259. The next prime is 66433271. The reversal of 66433266 is 66233466.

66433266 is a `hidden beast` number, since 6 + 643 + 3 + 2 + 6 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 47900241 + 18533025 = 6921^2 + 4305^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 66433266.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1845351 + ... + 1845386.

Almost surely, 2^66433266 is an apocalyptic number.

66433266 is an abundant number, since it is smaller than the sum of its proper divisors (77505516).

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

66433266 is a wasteful number, since it uses less digits than its factorization.

66433266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3690745 (or 3690742 counting only the distinct ones).

The product of its digits is 93312, while the sum is 36.

The square root of 66433266 is about 8150.6604640360. The cubic root of 66433266 is about 405.0063830727.

It can be divided in two parts, 664 and 33266, that added together give a triangular number (33930 = T₂₆₀).

The spelling of 66433266 in words is "sixty-six million, four hundred thirty-three thousand, two hundred sixty-six".