66745035 has 24 divisors (see below), whose sum is σ = 132219360. Its totient is φ = 30511872.

The previous prime is 66745033. The next prime is 66745069. The reversal of 66745035 is 53054766.

It is not a de Polignac number, because 66745035 - 2¹ = 66745033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66745033) 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 23 ways as a sum of consecutive naturals, for example, 105630 + ... + 106259.

It is an arithmetic number, because the mean of its divisors is an integer number (5509140).

Almost surely, 2^66745035 is an apocalyptic number.

66745035 is a deficient number, since it is larger than the sum of its proper divisors (65474325).

66745035 is a wasteful number, since it uses less digits than its factorization.

66745035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211907 (or 211904 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 66745035 is about 8169.7634604681. The cubic root of 66745035 is about 405.6389548326.

The spelling of 66745035 in words is "sixty-six million, seven hundred forty-five thousand, thirty-five".