66368566 has 8 divisors (see below), whose sum is σ = 108603144. Its totient is φ = 30167520.

The previous prime is 66368521. The next prime is 66368567. The reversal of 66368566 is 66586366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66368567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1508355 + ... + 1508398.

It is an arithmetic number, because the mean of its divisors is an integer number (13575393).

Almost surely, 2^66368566 is an apocalyptic number.

66368566 is a deficient number, since it is larger than the sum of its proper divisors (42234578).

66368566 is a wasteful number, since it uses less digits than its factorization.

66368566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3016766.

The product of its digits is 933120, while the sum is 46.

The square root of 66368566 is about 8146.6904936913. The cubic root of 66368566 is about 404.8748604891.

The spelling of 66368566 in words is "sixty-six million, three hundred sixty-eight thousand, five hundred sixty-six".