66017023 has 2 divisors, whose sum is σ = 66017024. Its totient is φ = 66017022.

The previous prime is 66016981. The next prime is 66017027. The reversal of 66017023 is 32071066.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66017023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66017027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33008511 + 33008512.

It is an arithmetic number, because the mean of its divisors is an integer number (33008512).

Almost surely, 2^66017023 is an apocalyptic number.

66017023 is a deficient number, since it is larger than the sum of its proper divisors (1).

66017023 is an equidigital number, since it uses as much as digits as its factorization.

66017023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 66017023 is about 8125.0860303138. The cubic root of 66017023 is about 404.1587435345.

Adding to 66017023 its reverse (32071066), we get a palindrome (98088089).

The spelling of 66017023 in words is "sixty-six million, seventeen thousand, twenty-three".