66265305 has 16 divisors (see below), whose sum is σ = 106169280. Its totient is φ = 35293248.

The previous prime is 66265301. The next prime is 66265313. The reversal of 66265305 is 50356266.

It is not a de Polignac number, because 66265305 - 2² = 66265301 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66265301) 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, 10206 + ... + 15384.

It is an arithmetic number, because the mean of its divisors is an integer number (6635580).

Almost surely, 2^66265305 is an apocalyptic number.

It is an amenable number.

66265305 is a deficient number, since it is larger than the sum of its proper divisors (39903975).

66265305 is a wasteful number, since it uses less digits than its factorization.

66265305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6040.

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 66265305 is about 8140.3504224327. The cubic root of 66265305 is about 404.6647736625.

The spelling of 66265305 in words is "sixty-six million, two hundred sixty-five thousand, three hundred five".