660224023 has 2 divisors, whose sum is σ = 660224024. Its totient is φ = 660224022.

The previous prime is 660224011. The next prime is 660224113. The reversal of 660224023 is 320422066.

It is a happy number.

660224023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 660224023 - 2²⁵ = 626669591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (660224003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330112011 + 330112012.

It is an arithmetic number, because the mean of its divisors is an integer number (330112012).

Almost surely, 2^660224023 is an apocalyptic number.

660224023 is a deficient number, since it is larger than the sum of its proper divisors (1).

660224023 is an equidigital number, since it uses as much as digits as its factorization.

660224023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 660224023 is about 25694.8248291363. The cubic root of 660224023 is about 870.7572668574.

Adding to 660224023 its reverse (320422066), we get a palindrome (980646089).

It can be divided in two parts, 6602 and 24023, that added together give a square (30625 = 175²).

The spelling of 660224023 in words is "six hundred sixty million, two hundred twenty-four thousand, twenty-three".