66305323 has 16 divisors (see below), whose sum is σ = 78414336. Its totient is φ = 54884160.

The previous prime is 66305263. The next prime is 66305329. The reversal of 66305323 is 32350366.

It is a cyclic number.

It is not a de Polignac number, because 66305323 - 2²¹ = 64208171 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66305291 and 66305300.

It is not an unprimeable number, because it can be changed into a prime (66305329) 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, 28440 + ... + 30682.

It is an arithmetic number, because the mean of its divisors is an integer number (4900896).

Almost surely, 2^66305323 is an apocalyptic number.

66305323 is a deficient number, since it is larger than the sum of its proper divisors (12109013).

66305323 is a wasteful number, since it uses less digits than its factorization.

66305323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2394.

The product of its (nonzero) digits is 9720, while the sum is 28.

The square root of 66305323 is about 8142.8080537367. The cubic root of 66305323 is about 404.7462170672.

Adding to 66305323 its reverse (32350366), we get a palindrome (98655689).

The spelling of 66305323 in words is "sixty-six million, three hundred five thousand, three hundred twenty-three".