66045359 has 4 divisors (see below), whose sum is σ = 66083640. Its totient is φ = 66007080.

The previous prime is 66045337. The next prime is 66045361. The reversal of 66045359 is 95354066.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66045359 - 2⁸ = 66045103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66045059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16424 + ... + 20045.

It is an arithmetic number, because the mean of its divisors is an integer number (16520910).

Almost surely, 2^66045359 is an apocalyptic number.

66045359 is a deficient number, since it is larger than the sum of its proper divisors (38281).

66045359 is a wasteful number, since it uses less digits than its factorization.

66045359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38280.

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 66045359 is about 8126.8295786241. The cubic root of 66045359 is about 404.2165599557.

The spelling of 66045359 in words is "sixty-six million, forty-five thousand, three hundred fifty-nine".