66349323 has 6 divisors (see below), whose sum is σ = 95837924. Its totient is φ = 44232876.

The previous prime is 66349279. The next prime is 66349337. The reversal of 66349323 is 32394366.

It is not a de Polignac number, because 66349323 - 2⁶ = 66349259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66349343) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3686065 + ... + 3686082.

Almost surely, 2^66349323 is an apocalyptic number.

66349323 is a deficient number, since it is larger than the sum of its proper divisors (29488601).

66349323 is a wasteful number, since it uses less digits than its factorization.

66349323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7372153 (or 7372150 counting only the distinct ones).

The product of its digits is 69984, while the sum is 36.

The square root of 66349323 is about 8145.5093763374. The cubic root of 66349323 is about 404.8357267018.

The spelling of 66349323 in words is "sixty-six million, three hundred forty-nine thousand, three hundred twenty-three".