66227123 has 4 divisors (see below), whose sum is σ = 66282240. Its totient is φ = 66172008.

The previous prime is 66227113. The next prime is 66227131. The reversal of 66227123 is 32172266.

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 66227123 - 2⁴ = 66227107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66227113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25715 + ... + 28172.

It is an arithmetic number, because the mean of its divisors is an integer number (16570560).

Almost surely, 2^66227123 is an apocalyptic number.

66227123 is a deficient number, since it is larger than the sum of its proper divisors (55117).

66227123 is a wasteful number, since it uses less digits than its factorization.

66227123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55116.

The product of its digits is 6048, while the sum is 29.

The square root of 66227123 is about 8138.0048537710. The cubic root of 66227123 is about 404.5870362556.

Adding to 66227123 its reverse (32172266), we get a palindrome (98399389).

The spelling of 66227123 in words is "sixty-six million, two hundred twenty-seven thousand, one hundred twenty-three".