66074003 has 2 divisors, whose sum is σ = 66074004. Its totient is φ = 66074002.

The previous prime is 66073999. The next prime is 66074023. The reversal of 66074003 is 30047066.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66074003 - 2² = 66073999 is a prime.

It is a Sophie Germain prime.

It is equal to p_3900266 and since 66074003 and 3900266 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (66074023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33037001 + 33037002.

It is an arithmetic number, because the mean of its divisors is an integer number (33037002).

Almost surely, 2^66074003 is an apocalyptic number.

66074003 is a deficient number, since it is larger than the sum of its proper divisors (1).

66074003 is an equidigital number, since it uses as much as digits as its factorization.

66074003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 66074003 is about 8128.5916984432. The cubic root of 66074003 is about 404.2749880112.

The spelling of 66074003 in words is "sixty-six million, seventy-four thousand, three".