66029223 has 16 divisors (see below), whose sum is σ = 94959200. Its totient is φ = 40569984.

The previous prime is 66029191. The next prime is 66029261. The reversal of 66029223 is 32292066.

It is not a de Polignac number, because 66029223 - 2⁵ = 66029191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66029263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41853 + ... + 43401.

It is an arithmetic number, because the mean of its divisors is an integer number (5934950).

Almost surely, 2^66029223 is an apocalyptic number.

66029223 is a deficient number, since it is larger than the sum of its proper divisors (28929977).

66029223 is a wasteful number, since it uses less digits than its factorization.

66029223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2658.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 66029223 is about 8125.8367569131. The cubic root of 66029223 is about 404.1836382902.

The spelling of 66029223 in words is "sixty-six million, twenty-nine thousand, two hundred twenty-three".