66887103 has 4 divisors (see below), whose sum is σ = 89182808. Its totient is φ = 44591400.

The previous prime is 66887101. The next prime is 66887123. The reversal of 66887103 is 30178866.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 66887103 - 2¹ = 66887101 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 (66887101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11147848 + ... + 11147853.

It is an arithmetic number, because the mean of its divisors is an integer number (22295702).

Almost surely, 2^66887103 is an apocalyptic number.

66887103 is a deficient number, since it is larger than the sum of its proper divisors (22295705).

66887103 is a wasteful number, since it uses less digits than its factorization.

66887103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22295704.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 66887103 is about 8178.4535824323. The cubic root of 66887103 is about 405.9265541309.

The spelling of 66887103 in words is "sixty-six million, eight hundred eighty-seven thousand, one hundred three".