66473003 has 2 divisors, whose sum is σ = 66473004. Its totient is φ = 66473002.

The previous prime is 66472961. The next prime is 66473023. The reversal of 66473003 is 30037466.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66473003 - 2¹² = 66468907 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (66473023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33236501 + 33236502.

It is an arithmetic number, because the mean of its divisors is an integer number (33236502).

Almost surely, 2^66473003 is an apocalyptic number.

66473003 is a deficient number, since it is larger than the sum of its proper divisors (1).

66473003 is an equidigital number, since it uses as much as digits as its factorization.

66473003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 66473003 is about 8153.0977548414. The cubic root of 66473003 is about 405.0871183823.

The spelling of 66473003 in words is "sixty-six million, four hundred seventy-three thousand, three".