66911303 has 12 divisors (see below), whose sum is σ = 72825312. Its totient is φ = 61428480.

The previous prime is 66911297. The next prime is 66911333. The reversal of 66911303 is 30311966.

It is not a de Polignac number, because 66911303 - 2⁴ = 66911287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66911333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9026 + ... + 14672.

It is an arithmetic number, because the mean of its divisors is an integer number (6068776).

Almost surely, 2^66911303 is an apocalyptic number.

66911303 is a deficient number, since it is larger than the sum of its proper divisors (5914009).

66911303 is a wasteful number, since it uses less digits than its factorization.

66911303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5722 (or 5705 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 66911303 is about 8179.9329459354. The cubic root of 66911303 is about 405.9755034683.

The spelling of 66911303 in words is "sixty-six million, nine hundred eleven thousand, three hundred three".