66452866 has 8 divisors (see below), whose sum is σ = 100180800. Its totient is φ = 33059268.

The previous prime is 66452863. The next prime is 66452879. The reversal of 66452866 is 66825466.

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

It is a super-2 number, since 2×66452866² = 8831966799227912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66452863) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 83086 + ... + 83881.

It is an arithmetic number, because the mean of its divisors is an integer number (12522600).

Almost surely, 2^66452866 is an apocalyptic number.

66452866 is a deficient number, since it is larger than the sum of its proper divisors (33727934).

66452866 is a wasteful number, since it uses less digits than its factorization.

66452866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167168.

The product of its digits is 414720, while the sum is 43.

The square root of 66452866 is about 8151.8627319159. The cubic root of 66452866 is about 405.0462092273.

The spelling of 66452866 in words is "sixty-six million, four hundred fifty-two thousand, eight hundred sixty-six".