66323023 has 4 divisors (see below), whose sum is σ = 71424808. Its totient is φ = 61221240.

The previous prime is 66323003. The next prime is 66323027. The reversal of 66323023 is 32032366.

66323023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66323023 - 2⁹ = 66322511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66323027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2550873 + ... + 2550898.

It is an arithmetic number, because the mean of its divisors is an integer number (17856202).

Almost surely, 2^66323023 is an apocalyptic number.

66323023 is a deficient number, since it is larger than the sum of its proper divisors (5101785).

66323023 is a wasteful number, since it uses less digits than its factorization.

66323023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5101784.

The product of its (nonzero) digits is 3888, while the sum is 25.

The square root of 66323023 is about 8143.8948298710. The cubic root of 66323023 is about 404.7822291114.

Adding to 66323023 its reverse (32032366), we get a palindrome (98355389).

The spelling of 66323023 in words is "sixty-six million, three hundred twenty-three thousand, twenty-three".