66452003 has 8 divisors (see below), whose sum is σ = 69021696. Its totient is φ = 63909000.

The previous prime is 66451981. The next prime is 66452027. The reversal of 66452003 is 30025466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66452003 - 2¹⁴ = 66435619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66452033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1523 + ... + 11628.

It is an arithmetic number, because the mean of its divisors is an integer number (8627712).

Almost surely, 2^66452003 is an apocalyptic number.

66452003 is a deficient number, since it is larger than the sum of its proper divisors (2569693).

66452003 is a wasteful number, since it uses less digits than its factorization.

66452003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13345.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 66452003 is about 8151.8097990569. The cubic root of 66452003 is about 405.0444558221.

Adding to 66452003 its reverse (30025466), we get a palindrome (96477469).

The spelling of 66452003 in words is "sixty-six million, four hundred fifty-two thousand, three".