66200745 has 16 divisors (see below), whose sum is σ = 114069312. Its totient is φ = 32591040.

The previous prime is 66200723. The next prime is 66200749. The reversal of 66200745 is 54700266.

66200745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 66200745 - 2⁶ = 66200681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66200749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169551 + ... + 169940.

It is an arithmetic number, because the mean of its divisors is an integer number (7129332).

Almost surely, 2^66200745 is an apocalyptic number.

66200745 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

66200745 is a deficient number, since it is larger than the sum of its proper divisors (47868567).

66200745 is a wasteful number, since it uses less digits than its factorization.

66200745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339512.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 66200745 is about 8136.3840248602. The cubic root of 66200745 is about 404.5333139861.

The spelling of 66200745 in words is "sixty-six million, two hundred thousand, seven hundred forty-five".