66283766 has 16 divisors (see below), whose sum is σ = 103552128. Its totient is φ = 31785600.

The previous prime is 66283733. The next prime is 66283783. The reversal of 66283766 is 66738266.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2276 + ... + 11736.

It is an arithmetic number, because the mean of its divisors is an integer number (6472008).

Almost surely, 2^66283766 is an apocalyptic number.

66283766 is a deficient number, since it is larger than the sum of its proper divisors (37268362).

66283766 is a wasteful number, since it uses less digits than its factorization.

66283766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9607.

The product of its digits is 435456, while the sum is 44.

The square root of 66283766 is about 8141.4842627128. The cubic root of 66283766 is about 404.7023489958.

The spelling of 66283766 in words is "sixty-six million, two hundred eighty-three thousand, seven hundred sixty-six".