66735065 has 8 divisors (see below), whose sum is σ = 81786240. Its totient is φ = 52251952.

The previous prime is 66735059. The next prime is 66735083. The reversal of 66735065 is 56053766.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66735065 is a prime.

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, 141755 + ... + 142224.

It is an arithmetic number, because the mean of its divisors is an integer number (10223280).

Almost surely, 2^66735065 is an apocalyptic number.

It is an amenable number.

66735065 is a deficient number, since it is larger than the sum of its proper divisors (15051175).

66735065 is a wasteful number, since it uses less digits than its factorization.

66735065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284031.

The product of its (nonzero) digits is 113400, while the sum is 38.

The square root of 66735065 is about 8169.1532608955. The cubic root of 66735065 is about 405.6187564675.

The spelling of 66735065 in words is "sixty-six million, seven hundred thirty-five thousand, sixty-five".