66671103 has 8 divisors (see below), whose sum is σ = 88948528. Its totient is φ = 44420544.

The previous prime is 66671083. The next prime is 66671117. The reversal of 66671103 is 30117666.

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

It is not a de Polignac number, because 66671103 - 2⁶ = 66671039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66671303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51 + ... + 11547.

It is an arithmetic number, because the mean of its divisors is an integer number (11118566).

Almost surely, 2^66671103 is an apocalyptic number.

66671103 is a deficient number, since it is larger than the sum of its proper divisors (22277425).

66671103 is a wasteful number, since it uses less digits than its factorization.

66671103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13433.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 66671103 is about 8165.2374735827. The cubic root of 66671103 is about 405.4891270639.

Adding to 66671103 its reverse (30117666), we get a palindrome (96788769).

The spelling of 66671103 in words is "sixty-six million, six hundred seventy-one thousand, one hundred three".