66045203 has 8 divisors (see below), whose sum is σ = 75811680. Its totient is φ = 56361600.

The previous prime is 66045181. The next prime is 66045211. The reversal of 66045203 is 30254066.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66045203 is a prime.

It is a super-2 number, since 2×66045203² = 8723937678622418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66045103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18998 + ... + 22203.

It is an arithmetic number, because the mean of its divisors is an integer number (9476460).

Almost surely, 2^66045203 is an apocalyptic number.

66045203 is a deficient number, since it is larger than the sum of its proper divisors (9766477).

66045203 is a wasteful number, since it uses less digits than its factorization.

66045203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41437.

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

The square root of 66045203 is about 8126.8199807797. The cubic root of 66045203 is about 404.2162417006.

Adding to 66045203 its reverse (30254066), we get a palindrome (96299269).

The spelling of 66045203 in words is "sixty-six million, forty-five thousand, two hundred three".