66374023 has 2 divisors, whose sum is σ = 66374024. Its totient is φ = 66374022.

The previous prime is 66374017. The next prime is 66374057. The reversal of 66374023 is 32047366.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66374023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66374083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33187011 + 33187012.

It is an arithmetic number, because the mean of its divisors is an integer number (33187012).

Almost surely, 2^66374023 is an apocalyptic number.

66374023 is a deficient number, since it is larger than the sum of its proper divisors (1).

66374023 is an equidigital number, since it uses as much as digits as its factorization.

66374023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 31.

The square root of 66374023 is about 8147.0254080861. The cubic root of 66374023 is about 404.8859568143.

The spelling of 66374023 in words is "sixty-six million, three hundred seventy-four thousand, twenty-three".