66057703 has 2 divisors, whose sum is σ = 66057704. Its totient is φ = 66057702.

The previous prime is 66057697. The next prime is 66057707. The reversal of 66057703 is 30775066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66057703 - 2⁵ = 66057671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66057707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33028851 + 33028852.

It is an arithmetic number, because the mean of its divisors is an integer number (33028852).

Almost surely, 2^66057703 is an apocalyptic number.

66057703 is a deficient number, since it is larger than the sum of its proper divisors (1).

66057703 is an equidigital number, since it uses as much as digits as its factorization.

66057703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26460, while the sum is 34.

The square root of 66057703 is about 8127.5890028962. The cubic root of 66057703 is about 404.2417413284.

The spelling of 66057703 in words is "sixty-six million, fifty-seven thousand, seven hundred three".