66049603 has 8 divisors (see below), whose sum is σ = 66718400. Its totient is φ = 65383848.

The previous prime is 66049601. The next prime is 66049619. The reversal of 66049603 is 30694066.

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 66049603 - 2¹ = 66049601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66049601) 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, 89008 + ... + 89746.

It is an arithmetic number, because the mean of its divisors is an integer number (8339800).

Almost surely, 2^66049603 is an apocalyptic number.

66049603 is a deficient number, since it is larger than the sum of its proper divisors (668797).

66049603 is a wasteful number, since it uses less digits than its factorization.

66049603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 66049603 is about 8127.0906848638. The cubic root of 66049603 is about 404.2252179365.

The spelling of 66049603 in words is "sixty-six million, forty-nine thousand, six hundred three".