66545368 has 16 divisors (see below), whose sum is σ = 125147880. Its totient is φ = 33172608.

The previous prime is 66545363. The next prime is 66545377. The reversal of 66545368 is 86354566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66545363) 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, 9646 + ... + 15037.

Almost surely, 2^66545368 is an apocalyptic number.

It is an amenable number.

66545368 is a deficient number, since it is larger than the sum of its proper divisors (58602512).

66545368 is a wasteful number, since it uses less digits than its factorization.

66545368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25026 (or 25022 counting only the distinct ones).

The product of its digits is 518400, while the sum is 43.

The square root of 66545368 is about 8157.5344314321. The cubic root of 66545368 is about 405.2340627403.

The spelling of 66545368 in words is "sixty-six million, five hundred forty-five thousand, three hundred sixty-eight".