66882085903 has 4 divisors (see below), whose sum is σ = 66883051480. Its totient is φ = 66881120328.

The previous prime is 66882085889. The next prime is 66882085909. The reversal of 66882085903 is 30958028866.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66882085903 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 (66882085909) 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, 370125 + ... + 520342.

It is an arithmetic number, because the mean of its divisors is an integer number (16720762870).

Almost surely, 2^66882085903 is an apocalyptic number.

66882085903 is a deficient number, since it is larger than the sum of its proper divisors (965577).

66882085903 is an equidigital number, since it uses as much as digits as its factorization.

66882085903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965576.

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 66882085903 in words is "sixty-six billion, eight hundred eighty-two million, eighty-five thousand, nine hundred three".