66232623 has 8 divisors (see below), whose sum is σ = 88350336. Its totient is φ = 44135000.

The previous prime is 66232619. The next prime is 66232631. The reversal of 66232623 is 32623266.

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 66232623 - 2² = 66232619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66232693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6358 + ... + 13148.

It is an arithmetic number, because the mean of its divisors is an integer number (11043792).

Almost surely, 2^66232623 is an apocalyptic number.

66232623 is a deficient number, since it is larger than the sum of its proper divisors (22117713).

66232623 is a wasteful number, since it uses less digits than its factorization.

66232623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10045.

The product of its digits is 15552, while the sum is 30.

The square root of 66232623 is about 8138.3427674189. The cubic root of 66232623 is about 404.5982359323.

Adding to 66232623 its reverse (32623266), we get a palindrome (98855889).

The spelling of 66232623 in words is "sixty-six million, two hundred thirty-two thousand, six hundred twenty-three".