66307307 has 8 divisors (see below), whose sum is σ = 73251840. Its totient is φ = 59515560.

The previous prime is 66307303. The next prime is 66307313. The reversal of 66307307 is 70370366.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66307307 - 2² = 66307303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66307301) 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 7 ways as a sum of consecutive naturals, for example, 37283 + ... + 39020.

It is an arithmetic number, because the mean of its divisors is an integer number (9156480).

Almost surely, 2^66307307 is an apocalyptic number.

66307307 is a deficient number, since it is larger than the sum of its proper divisors (6944533).

66307307 is a wasteful number, since it uses less digits than its factorization.

66307307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76393.

The product of its (nonzero) digits is 15876, while the sum is 32.

The square root of 66307307 is about 8142.9298781213. The cubic root of 66307307 is about 404.7502539903.

The spelling of 66307307 in words is "sixty-six million, three hundred seven thousand, three hundred seven".