66745335 has 16 divisors (see below), whose sum is σ = 109398240. Its totient is φ = 34728960.

The previous prime is 66745319. The next prime is 66745337. The reversal of 66745335 is 53354766.

It is not a de Polignac number, because 66745335 - 2⁴ = 66745319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66745293 and 66745302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66745337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53650 + ... + 54879.

It is an arithmetic number, because the mean of its divisors is an integer number (6837390).

Almost surely, 2^66745335 is an apocalyptic number.

66745335 is a deficient number, since it is larger than the sum of its proper divisors (42652905).

66745335 is a wasteful number, since it uses less digits than its factorization.

66745335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108578.

The product of its digits is 226800, while the sum is 39.

The square root of 66745335 is about 8169.7818208322. The cubic root of 66745335 is about 405.6395625757.

The spelling of 66745335 in words is "sixty-six million, seven hundred forty-five thousand, three hundred thirty-five".